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 RHI.
The Evo’s high ErP rating means it produces 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.
Matt Young – Installer, Griffiths Air Conditioning
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.
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.
On top of its 5-year guarantee, the Evo has technical support for life for your complete peace of mind.See costs & payback
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.
Geraint Roberts - Self Builder
The Evo series* is Connect & Notify-approved on the Energy Network Association’s (ENA) heat pump database, saving time and quickening the RHI process 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.
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
Medium to large homes
7 – 17 kW
49 – 56 decibels
A++ ErP rating
All MCS approved
7 – 15kW Connect & Notify approved
Genesis System Manager
District heating | Efficient homes | Flats
3 – 6 kW
47 – 52 decibels
A+ ErP rating
All MCS approved
Connect & Notify approved
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
7kW from £5,862
9kW from £6,395
13kW from £6,928
17kW from £8,526
15kW from £7,461*
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
|Type of system||13 kW Evo ground source heat pump||Vs. LPG boiler|
|Type of ground array||Slinkies (common) 1||Pond mats (near water)2||Boreholes (limited land)3||-|
|Land area required||1,000 sq/m||1,000 sq/m of lake||200 sq/m||-|
|Appliance & infrastructure costs*||£16,000||£15,250||£28,500||£1,500|
|Domestic RHI income (over 7 years)**||£26,000||£26,000||£26,000||Not eligible|
|Running costs (over 7 years)***||£10,000||£10,000||£10,000||£15,000|
|Servicing costs (over 7 years)****||£0||£0||£0||£700|
|Total net cost (after 7 years)*****||£0||£750 profit||£12,500 cost||£17,200 cost|
|Type of system||4 x 13kW Evo heat pumps||Vs. LPG boiler|
|Type of ground array||Shared Ground Loop Array of boreholes (common)1||Shared Ground Loop Array of pond mats (near water)2||Shared Ground Loop Array of slinkies (if enough land)3||-|
|Land area required||600-900sq/m||3,500 sq/m of lake||3,500 sq/m||-|
|Appliance & infrastructure costs*||£92,000||£58,000||£64,000||£15,000|
|Non-Domestic RHI income (over 20 years)**||£185,000||£185,000||£185,000||Not eligible|
|Running costs (over 20 years)***||£125,000||£125,000||£125,000||£187,500|
|Servicing costs (over 20 years)****||£0||£0||£0||£2,000|
|Total net cost (after 20 years)*****||£32,000 cost||£2,000 profit||£4,000 cost||£204,500 cost|
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.
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
Core heat pump unit (refrigeration components)
Controller & water pumps
|Nominal thermal kW rating||7||9||13||17||15|
|MCS Approved||BBA 0055/41||BBA 0055/42||BBA 0055/43||BBA 0055/44||BBA 0055/39|
|Performance data - rated heating output at B0/W35 BS EN14511|
|Co-efficient of Performance*||4.48||4.36||4.14||3.81||4.2|
|Immersion heater output||Kensa heat pumps do not feature back-up electric immersion heaters**|
|ENA Connect & Notify approval||Yes||Yes||Yes||No***||Yes|
|Brine (primary) based on 0°C in / -4°C out
|Design flow rate kg/min||29.1||28.4||39.2||50.6||42.8|
|Pressure drop kPa at design flow rate||12||11||17||29.2||20.6|
|Max inlet temperature °C||15|
|Min temperature °C (outlet)||-5 (at standard settings)|
|Heating water (secondary) based on 30°C in / 35°C out|
|Design flow rate l/min||22.4||28.5||38.9||51.2||45.9|
|Pressure drop kPa at design flow rate||4||5.7||10.1||28.3||13.6|
|Max flow temperature °C****||64||63||63||50||62|
|Electrical values at B0/W35|
|Rated voltage||220 - 240V / 50 - 60 Hz||380-420V / 50-60 Hz|
|Power supply rating amps||25||25||40||50||16|
|Rated current (max) amps||18.5||20.6||31.1||35||11.8|
|Typical running current at B0/W35 amps||8.4||11.4||16||23||7.3|
|Starting current amps*****||18.2||28.7||41.3||45||44|
|Fill volume kg||1.9||1.9||2||2.1||2|
|H X W X L (mm)||1145 x 600 x 575|
|Dry weight kg||153||154||167||167||170|
|Brine circuit min (primary) bar g||Settable at commissioning|
|Heating water circuit min (secondary) bar g||Settable at commissioning|
|Low pressure reset bar g||Settable at commissioning|
|Primary IN and OUT (speedfit) mm||28|
|Heating flow and return (speedfit) mm||28|
|Performance (based on Average Climate) at 35°C
|Seasonal space heating energy efficiency||180%||178%||168%||155%||171%|
|Performance (based on Average Climate) at 55°C
|Seasonal space heating energy efficiency||140%||137%||131%||118%||135%|
|Sound Power Level|
|Sound Power Level (dB)||49.4||56.1||49.7||56.2||49.2|
“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”
Geraint Roberts - Self BuilderSee the case study
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
Howard Smith - Self BuilderSee the case study
4-bedroom new build house
13kW Evo ground source heat pump
Underfloor heating throughout
3 x 50m slinkies
Eligible for the Domestic RHI
John Berriman - HomeownerSee the case study
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