Overview

Key advantages of the Kensa Evo

A+++ energy efficiency

Maximise the Domestic Renewable Heat Incentive (RHI) income and reduce carbon emissions with the Evo’s high efficiency.

Affordable heating, hot water & cooling

Experience the pros of renewable heating, hot water and cooling without the cons of pricey bills.

A smart system manager

Leave the hard work to the Genesis System Manager – a clever system that optimises the Evo’s performance.

Quiet & modern design

Enjoy peace and quiet with discreet sound levels and a sophisticated system that fits snugly inside the home.

Rewarding payback

Make and save money over the Evo’s lifetime. The Evo is eligible for rewarding payments from the Domestic RHI – plus, minimal maintenance and no more annual servicing.

Hassle-free electrical connection

Connect to the electricity grid without delay. The Evo’s Connect & Notify approval can save time and money.

Easy to install

Install the Evo with the ease of versatile features and a straightforward touch-screen set-up.

Safe & non-combustion heating

Choose the safe alternative to combustion fossil fuels and flammable refrigerant renewables. Like all Kensa products, the Evo uses a non-flammable refrigerant.

An A+++ in efficiency & intelligence

Boasting an A+++ Energy-related Product (ErP) rating, the Evo is our most efficient ground source heat pump. Its evolution sees a 15% gain in efficiency since its predecessor, maximising income from the Domestic RHI.

The Evo’s high ErP rating means it delivers much more energy than it consumes from electricity – saving on heating bills, lowering carbon emissions and improving air quality. With an impressive 4.7 SCoP at 35°C, you’ll have top-mark heating no matter the season.

The Genesis System Manager takes the Evo to a whole new level of performance. As the world’s first ground source controller, the Genesis monitors and records efficiencies to help the Evo perform at its best.

Effortlessly integrating with all heating control systems, the Genesis allows flexibility for your heating to be as smart or simple as you like.

“Whilst Kensa has made some innovative changes, the heat pump itself is still as simple and reliable as ever.”

Matt Young – Installer, Griffiths Air Conditioning

Affordable hot water, heating & cooling on demand

Heats in the winter, cools in the summer

The Evo system produces hot water up to 60°C*. Creating up to four times the energy it consumes, its high efficiency makes heating and hot water all-the-more affordable.

Working together with new or existing heating distribution systems, such as radiators or underfloor heating, the Evo delivers low-cost warmth to the home.

When summer finally arrives, you can even benefit from passive cooling as a useful add-on.

*Excluding 17kW

 

Rewarding returns & minimal maintenance

Throughout its 20-year design life, the Evo requires no servicing, needs little maintenance and produces next-to-no emissions. All the while earning a 7-year income from the Domestic RHI for single-building projects.

On top of its 5-year guarantee, the Evo has technical support for life for your complete peace of mind.

See costs & payback

Quietly brilliant

Our most intelligent and efficient heat pump is not only designed for peace of mind, but a peaceful environment.

The Evo’s noise levels range from 49.2 to 56.2 decibels (dB) – comparable in sound to the average dishwasher.

“I can’t believe how quiet the heat pump is! We don’t have the door on the utility room yet and you can hardly hear it running at all.”

Geraint Roberts - Self Builder

Easy to install & commission

Connect & Notify approved

The Evo series* is Connect & Notify-approved on the Energy Network Association’s (ENA) heat pump database, saving time versus most non-approved ground source heat pumps.

In most projects, approval means the installation can go ahead immediately; the local District Network Operators (DNO) don’t have to be notified until after installation. Approval almost always protects consumers from paying for an electricity upgrade.

*The 17kW is ‘apply to connect’ due to C&N’s 32A power limit, but meets the high standards of C&N approval – DNOs will usually cover necessary upgrade costs.
See more technical features

Kensa’s installation services

Our customer support is tailored to projects of all shapes and sizes.

Looking for an installer?
Submit your plans and we’ll recommend a local Kensa-approved installer.

Need MCS support?
Our MCS Umbrella service will guide installers through the entire process.

“The Evo is modern and contemporary, but still has the same simple set up as all of Kensa's products.”

Tom Sandell - Installer, TWS Plumbing & Heating

See more reviews

Looking for costs?

See heat pump prices & project examples.

Unrivalled support

Like all Kensa customers, Evo owners and installers have complimentary technical support for the system’s lifetime. From design and commissioning to post-installation advice.

 

See how we support you

Kensa Evo in the wild

It’s easy for us to talk about the remarkable Evo heat pump, but the real proof is how it performs out in the field.

In rural Wales, the Evo put heat into the heart of this barn-converted family home – a dream project for local couple Geraint and Mererid.

See the case study

Looking for technical specifications?
Discover features & technical data.

Models & Costs

Evo heat pump costs

Single-phase power

7kW from £6,156

9kW from £6,715

13kW from £7,275

17kW from £8,935

 

Three-phase power

15kW from £7,835*

 

*List prices exclude VAT.

Tell us about your plans & get a quote

The model that is specified for your project will depend on factors such as heat demand and insulation levels.

For a better idea of project cost and payback, get a quote at no obligation.

Get a quote

Project cost example: single self-build or renovation

Type of system 13 kW Evo ground source heat pumpVs. LPG boiler
Type of ground arraySlinkies (common) 1Pond mats (near water)2Boreholes (limited land)3
-
Land area required1,000 sq/m1,000 sq/m of lake 200 sq/m -
Appliance & infrastructure costs*£16,000£15,250£25,000£1,500
Domestic RHI income (over 7 years)**£26,000£26,000£26,000Not eligible
Running costs (over 7 years)*** £9,000£9,000£9,000£15,000
Servicing costs (over 7 years)****£0£0£0£700
Total net cost (after 7 years)*****£1,000 profit £1,750 profit£8,000 cost£17,200 cost


Mid-research? Established plans? 

Wherever you are, get a quote from Kensa.

Technical

Performance features

Electrical ‘soft starts’ reduce peak starting load and avoid flickers in electricity.

Modulating pumps are commissioned to meet the flow requirements of the Evo unit, and the load side pump automatically modulates between normal and setback speeds.

Self-adjusting pressure controlled hot water system and domestic hot water boost controllers synchronise to heat pump cycles to minimise energy use.

Integrated water pumps for both the ground side and load side.

A third heat exchanger recovers internal waste heat from the compressor circuit.

Weather compensation fitted as standard.

Water pump exercise program reduces maintenance requirements.

Watch Evo technical overview

Warning signals for low flow rates reduce system faults.

Fixed speed scroll compressors deliver the highest heat pump efficiency possible.

Stainless steel heat exchangers enhance energy output and eliminate corrosion.

Easy installation features

Simple screw access to the Evo’s electrical components.

Curved cut-outs offer an extra level of installation flexibility.

Rear water connections enable quick and easy connection to the ground array and heating distribution system.

How to install a Kensa Evo

Warranties

Evo components


Core heat pump unit (refrigeration components)


Controller & water pumps

Warranty


5 years


2 years


Accreditation & awards

Connect & Notify approval

7 – 15kW have Connect & Notify approval from the Energy Networks Association (ENA), ensuring a trouble-free connection to the grid. 17kW ‘apply to connect’ but DNO will usually cover necessary upgrade costs.

MCS accreditation

Microgeneration Certification Scheme (MCS) accreditation proves compliance and supports the Evo’s eligibility for the Domestic RHI.

A+++ energy efficiency

A +++ Energy-related Product (ErP) rating.

ISO9001 approval

The Evo is made in an ISO9001 accredited factory.

Best Heat Pump - Highly Commended

Highly commended at Homebuilding & Renovating’s Green Home Awards 2021.

Heat Pump Product Of The Year

Winner at the ACR & Heat Pump Awards 2018.

Best Sustainable Technology/Product

Winner at the Build It Awards 2017.

Domestic Heating Product Of The Year finalist

Finalist at the H&V News Awards 2018.


Dimensions

1145mm high

600mm wide

575mm deep


Technical data

PhaseSingleSingleSingleSingleThree
Nominal thermal kW rating79131715
Part NumberK070-S1HK090-S1HK130-S1HK170-S1HK150-S3H
MCS ApprovedBBA 0055/41BBA 0055/42BBA 0055/43BBA 0055/44BBA 0055/39
Performance data - rated heating output at B0/W35 BS EN14511
Power consumption1.82.33.44.63.8
Co-efficient of Performance*4.484.364.143.814.2
Immersion heater outputKensa heat pumps do not feature back-up electric immersion heaters**
ENA Connect & Notify approvalYesYesYesNo***Yes
Brine (primary) based on 0°C in / -4°C out
Design flow rate kg/min29.128.439.250.642.8
Pressure drop kPa at design flow rate12111729.220.6
Max inlet temperature °C15
Min temperature °C (outlet)-5 (at standard settings)
Heating water (secondary) based on 30°C in / 35°C out
Design flow rate l/min22.428.538.951.245.9
Pressure drop kPa at design flow rate45.710.128.313.6
Max flow temperature °C****6463635062
Electrical values at B0/W35
Rated voltage220 - 240V / 50 - 60 Hz380-420V / 50-60 Hz
Power supply rating amps2525405016
Rated current (max) amps18.520.631.13511.8
Typical running current at B0/W35 amps8.411.416237.3
Starting current amps*****18.228.741.34544
Refrigerant circuit
Process mediumR407C
Fill volume kg1.91.922.12
Compressor typeScroll
Dimensions
H X W X L (mm)1145 x 600 x 575
Dry weight kg153154
167167170
Operating pressure
Brine circuit min (primary) bar gSettable at commissioning
Heating water circuit min (secondary) bar gSettable at commissioning
Low pressure reset bar gSettable at commissioning
Connection sizes
Primary IN and OUT (speedfit) mm28
Heating flow and return (speedfit) mm28
Performance (based on Average Climate) at 35°C
ErP ratingA+++A+++A++A++A++
SCOP******4.724.644.404.064.47
Seasonal space heating energy efficiency180%178%168%155%171%
Performance (based on Average Climate) at 55°C
ErP ratingA++A++A++A+A++
SCOP******3.73.623.483.163.58
Seasonal space heating energy efficiency140%137%131%118%135%
Sound Power Level
Sound Power Level (dB)49.456.149.756.249.2
* The COP figure quoted is calculated as per EN14511.
** In-built immersion heaters will increase running costs and CO2 emissions as they use direct electricity, because of this Kensa heat pumps do not include them.
***The 17kW Evo is ‘apply to connect’ due to the C&N 32A power limit, but still meets the high technical standards of C&N approval (Class A limits of IEC 61000-3-2 and the Technical Requirements of IEC 61000-3-3). This means that any necessary electricity network upgrade costs will usually be met by the DNO’
****By increasing the flow temperature from the heat pump the efficiency of the unit will drop and the COP decreases.
***** Kensa Evo heat pumps incorporate smart starts as standard to limit the starting current of the compressors. For full details on how the starting currents are calculated please contact Kensa.
******The SCOP figure quoted is calculated as per EN14825.
Note: Design flowrates are for a ground temperature of 0 and –3oC and a load temperature of 30oC and 35oC

Get the MCS stamp of approval

with Kensa’s MCS Umbrella Service.

Lifetime technical support

“The support team at Kensa have made recovery and service into an art form.”

“First class product and excellent after sales attention – even when out of guarantee”

Reviews

Case study reviews

Evo Ground Source Heat Pump

“I can’t believe how quiet the heat pump is! We don’t have the door on the utility room yet and you can hardly hear it running at all.”

Geraint Roberts - Self Builder

See the case study

Project overview

4-bedroom retrofit barn conversion, 240m²

Rural area, off the gas grid

13kW Kensa Evo ground source heat pump

Underfloor heating on ground-floor level

4 x 40m slinkies under adjacent field

Eligible for Domestic RHI


Evo Ground Source Heat Pump

When you factor in all the other benefits that ground source brings, such as lower running costs and reduced fuel bills, you’ll see you have an efficient, renewable heating system that you’ll see the financial benefits from for years to come.

Howard Smith - Self Builder

See the case study

Project overview

4-bedroom new build house

13kW Evo ground source heat pump

Underfloor heating throughout

3 x 50m slinkies

Eligible for the Domestic RHI


Evo Ground Source Heat Pump

"The utility room happens to be underneath our bedroom, but we’ve never been able to hear the heat pump when it’s been running, which just goes to show how quiet it is!"

John Berriman - Homeowner

See the case study

Project overview

300m² property, comprising a 4-bed cottage and 2-bed annexe

Knock down and rebuild project

13kW Kensa Evo ground source heat pump

3 x 50m slinkies under adjacent field

Eligible for Domestic RHI


Kensa Google reviews

Damian V.
Damian V.
15:54 28 Oct 21
This is a comment about Kensa support.My 12-year-old heat pump developed an intermittent fault by... which the pump failed to start. It got worse over a few days until it no longer worked at all. (Not surprising in such an old machine).I phoned Kensa support and in seconds I had a diagnosis, and a new part was on it's way to me. As I didn't want to fit the part myself, the support people put me in touch with a local plumbing and heating expert. Unfortunately, he fell ill and took time off work, so my wife and I took on the task ourselves, following telephone guidance from Kensa support.Incidentally, when we first had the heat pump, we were confused about how to get the best from it, but we found out then that we could rely on them for help.Anyway, to fit the part we removed the front panel, then the top panel, but still we couldn't reach the failing part. We had to remove the back and side panels too - all the time following Kensa advice. Even then there were more problems. (I understand that newer machines are much easier to maintain.)We had been without heating for two weeks and frequently felt like giving up, but we sent photos by email to Kensa to illustrate difficulties as they arose and received solutions in return. Eventually we got the new part in place, switched on and felt the most profound sense of relief and satisfaction when the pump sprang to life.It should be emphasised that the support team are not necessarily familiar with such old models, but whenever we made contact all the support staff present knew about the problem. This gave a very reassuring feeling that we were getting an individual, personal service for which we are most grateful.In short, we received the most excellent telephone and email support for getting this very old heat pump working again.read more
Jane S
Jane S
11:48 28 Oct 21
The installer of our Kensa heat pump retired some years ago but Kensa Technical support have... provided excellent service and information over the phone and on line. We could not ask for more. Excellent company. Would recommend.read more
Kevin F.
Kevin F.
18:58 25 Oct 21
Tom, was extremely helpful in assisting in a technical issue I had with my Kensa heat pump. The... pump has been working well for the past 10 years without any major issues. The pressure had dropped and Tom remotely assisted in solving the problem which saved me time and not doubt expense. Thank you very muchread more
Dana F.
Dana F.
10:32 18 Oct 21
The Kensa Technical Support team are excellent. They are always happy to help with issues and... really go the extra mile. Twice now they have sent out part replacements free of charge (when we are actually out of warranty) and have talked us through the installation in order to save us from calling out a plumber. Carl has been really really helpful, and Tom has also been excellent in the past.read more
lisa M.
lisa M.
12:31 01 Oct 21
The after sales service provided by Kensa has been exemplary. They have been easy to contact,... always very helpful and have reliably followed up on everything they promised as well as keeping us informed on a regular basis. They have gone over and beyond to ensure we are satisfied with their product. I would highly recommend Kensa to anyone considering a heat pump.read more
David R.
David R.
10:48 20 Sep 21
Our 20kw Single phase Heat pump was fitted over 7 years ago, over that time we have had one sensor... failure , that was replaced FOC, recently one of our ground arrays was isolated due to it weeping at the fitting, Thanks to Tom for sending out a replacement olive.read more
darren H.
darren H.
21:42 07 Sep 21
Excellent ‘after-care’ and technical help on a product installed many years ago in a property I’ve... just moved into. It’s reassuring to be able to go through the heat pump and clarify my understanding and solve pressure issues simply by being talked through it all on the phone. Thanks for your time folk.read more
Trybrid
Trybrid
16:29 11 Mar 21
Had a really informative conversation with their Sales team. I was originally looking at installing... a ground source heat pump. However I was pointed in the direction of an air source pump which isn't one of their products but would be better suited for my property. Clearly putting customer service first! I would highly recommend you to get a quote from them.read more
Wayne R.
Wayne R.
14:16 02 Feb 21
Having had a lengthy search to find someone that actually knew what they were talking about when it... came to ground source heat pumps, we found Kensa. When we called we thought we were getting the receptionist, but in fact we got Daisy. She knew more about what she was selling than anyone else we had spoken to. Clearly knew her stuff, and instantly put our minds at ease. She worked out a detailed quote and nothing was too much trouble when we asked questions or wanted to change something.Installation was quick, clean, and everything was explained in a language we could understand. We were then given a complete system booklet, again explaining what to do if we have any issues or need to change anything on the systemDaisy and the whole Kensa team have been nothing but professional, capable and courteous from start to finish.Thoroughly recommend Daisy and the whole of the Kensa team to anyone who needs a GSHP.read more
oy D.
oy D.
16:33 21 Jan 21
The plumbers and the resident liaison officer did a great job on my block on Drygate walk 2-8.... Thanks you guys.read more
posh and F.
posh and F.
21:53 20 Jan 21
Thank you so much Demi for your help during my sister heating installation last week, housing... didn't care but you were so helpful,Thank you.read more
aslan B.
aslan B.
11:50 18 Jan 21
The workmen are friendly and polite and dispıte beıng so streched nothing iş too much trouble. The... system iş a little cooler then my old heating system but overall its goodread more
Sue H.
Sue H.
16:42 15 Dec 20
I installed a Kensa Ground source heat pump in 2015 and am really pleased. I also have solar PV and... solar thermal so this form of heating is absolutely essential. Made in Cornwall !!read more
Allan T.
Allan T.
14:21 10 Nov 20
We installed our heat pump in 2007, yes..13 years ago. It has been an excellent and reliable... investment that has performed exactly as planned. Support from Kensa can only be described as outstanding. Any call for support is quickly answered by knowledgeable engineers, who work with you to diagnose and resolve the fault or diagnose the issue and then send the right resources to fix the system. They clearly keep a sense of ownership and pride in what they make and install and are patience personified in the way they deal with lay customers. Top marks from me and thanks in particular to Tom with a recent sensor failure that proved difficult to identify.read more
Nigel D.
Nigel D.
18:16 09 Nov 20
I am delighted with the service provided by Kensa. I purchased a ground source heat pump from this... company in 2014 and I have been very pleased with my purchase. When help is required the very able technical team are always accessible and very willing to assist. I am very happy to recommend this company to anyone considering to invest in a ground source heat pump.read more
Steve A.
Steve A.
13:44 13 Oct 20
We have a Kensa GSHP, the pump is reliable, needs little servicing and is both environmentally and... uses only a little electricity. Todd in tech support is THE most helpful and informed person you will come accross...what's not to like?read more
John G.
John G.
15:10 06 Oct 20
We recently had a Kensa Heat Pump installed at our new build Hobbit Hole holiday let. Nothing about... this whole build was easy but we opted for Kensa for our renewable energy. Brilliant decision from the start, the product layout, working with our staggered delivery requests due to a just in time scheme adopted for the build, to literally holding our hand during the self installation process using a heat engineer locally. So helpful, and great to know if we need further guidence, totally confident they are there. John & Rebecca Garrett, Hobbit Hole, Abbotsham,North Devonread more
Michael P.
Michael P.
12:59 06 Oct 20
Can’t thank these guys enough especially Todd his knowledge of these heat pumps is second to none
Martin B.
Martin B.
21:43 02 Oct 20
I had a Kensa heat pump installed in 2017. It has worked really well and saved significantly on... space and water heating costs. The technical support team at Kensa have been absolutely fantastic helping sort out installation issues, responding very quickly and positively to queries and resolving issues very efficiently.read more
Richard J.
Richard J.
07:33 17 Sep 20
great service, very efficient as always
Bharat R.
Bharat R.
19:53 23 Aug 20
I chose Kensa Heat Pumps for our GSHP needs because Steve Costello and the other professionals I... met at home building events always welcomed me and answered all my questions. They introduced me to Howard Smith Builders in Herefordshire who installs many of their pumps and I visited him to see first-hand an installation Howard had done. Back to Kensa. All throughout the build and spec of our pump, Kensa stayed in touch and Steve even visited our home when the work began. I have also been assured that as and when there are software updates for their pumps, Kensa will provide them to me to ensure my pump stays at the optimum level. Thank you, Steve, and Kensa for sticking with me when I needed you to hold my pump for a year with no extra charge! Looking forward to having Lewington’s of Market Harborough finishing the install of your pump and slinkies this Wednesday!read more
Joule E.
Joule E.
17:17 22 Jul 20
I have been using Kensa for a number of years now, and whilst the service is always exceptional... from every member off the team, just recently, and during these trying times, Jacquelyn, James & Maggie have gone the extra mile to ensure my business has kept installing. Really fantastic work guys, much appreciated, thank you, Lee Whiteread more
Mike H.
Mike H.
12:25 08 May 20
Well, Kensa technicians continue to do a wonderful job. We installed our heat pump back in 2007.... Paid a fair price, got a grant towards the cost and have benefited from cheaper heating ever since. Any other boiler I am sure would have been on the scrap heap by now and the manufacturers not in the slightest bit interested in us. But not Kensa, they have continued to give first class technical support throughout the thirteen years - all advice free, friendly and helpful. We’ve bought a few bits, but not many and several parts have been provided free of charge. This time it was Todd doing the magic programming a new Corel for us, which he sent us by return at absolutely no cost to us. So anyone reading this - thinking of having a Kensa heat pump - do it! You won’t be sorry. Todd likened it to a land rover - sturdy, robust, efficient and long lasting and I think that’s absolutely right.read more
Steve T.
Steve T.
14:47 04 May 20
Can't recommend Kensa enough. Great product, phenomenal customer service. I called them after our... heat pump stopped working and spoke to an engineer called Tod. He was extremely knowledgeable and talked me through getting it going again over the telephone, even though turned out that the fault wasn't anything to do with the heat pump itself! Above and beyond, even messaged me again to check everything was still ok. Thanks Tod, you are an asset to Kensa!!read more
Duncan R.
Duncan R.
17:11 27 Apr 20
Great company to work with. Very professional in every aspect of their business. The best company... to deal with if want a heat pump system that is designed and installed by highly skilled and experienced people.read more
Jon T.
Jon T.
20:44 12 Mar 20
The staff at Kensa could not have been more helpfulI bought a 10 kw heat pump in 2007 which has... worked without a problem untill while extending my drains I cut through one of the underground pipes. The help I received enabled me to get my system up and running with only a day down time very very helpful.read more
Jean C.
Jean C.
20:07 03 Mar 20
We found all Kensa personnel helpful and knowledgeable, especially TomWorth, when our heat... exchanger broke down. Very pleased we purchased Kensa. Peter Lyonsread more
Robert E.
Robert E.
10:39 20 Feb 20
Similar to another reviewer, we bought Ground Source Heat Pump from Kensa some 10 or more years... ago. Never had any problems what so ever, until recently it fails to start and only rarely does it get up and going.Called the service desk, spoke to one of the Tom's, excellent knowledgeable advice culminating in us purchasing a replacement smart start box. I was nervous about doing the replacement, but encouraged by Tom, gave it a shot, it worked perfectly, job done !A couple of calls to the team always results in friendly expert definitive advice, everything breaks at some point, so its all in the recovery and the support team at Kensa have made recovery and service into an art form.The product is by design inherently more reliable than oil or gas boilers and the Kensa support experience confirms it was the right decision to buy the product.Congratulations.read more
Mark N.
Mark N.
20:39 15 Jan 20
Came across the invoice for our Kensa heat pump during a clear out. It cost us about £6k just over... ten years ago (+ digger hire for a few days) and I reckon it's saved us at least £750 per year since (probably closer to £1000). Maintenance cost so far has just been inhibitor for the heating system.read more
David W.
David W.
21:44 05 Dec 19
First class product and excellent after sales attention - even when out of guarantee
Derek S.
Derek S.
09:44 01 Dec 19
I bought a 10 year old house with a Kensa Ground Source Heat Pump last year. Recently, my hot... water has not been as hot as usual so I contacted Kensa for some advice. Bear in mind this is a 10 year old heat pump, well out of warranty . . . They could not have been more helpful!I have spent at least a couple of hours on the phone with Todd from their technical support team. He helped me troubleshoot, talked me through how to open the unit up and check things myself. He sent me some small parts free of charge and I also bought a couple of replacement parts, which he again talked me through how to fit.I have never come across a single company in my entire life that wouldn't charge me for this time. I'm well out of warranty and yet Todd did not hesitate to help. No bill for labour, just patient, friendly advice. What amazing service! Second to none!If I ever need another heat pump I'll be going straight to Kensa. Best customer service I've ever experienced!read more
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