Savings

Ground source heat pumps deliver low carbon and low cost heat with low lifetime ownership costs, providing excellent savings for end users and social landlords.

Carbon savings

Updated in 2013 and covering the conservation of fuel and power, Building Regulations Part L are becoming increasingly stringent in the use of energy and CO2 emissions. By replacing a conventional fossil fuel based heating system with a ground source heat pump, higher levels of building efficiency and CO2 saving can be achieved.

CO2 emissions from new buildings are measured in SAP, most recently updated in 2012.

 

While electricity is considered a relatively carbon intensive fuel, the efficiency factor of a ground source heat pump reduces the emissions from space and water heating by up to two-thirds.

Developments in rural or off gas grid areas featuring Kensa ground source heat pumps benefit from greater CO2 emission reductions and improved carbon compliance compared to traditional oil, LPG, or night storage heater alternatives.

Equally, in gas connected areas ground source heat pumps provide a carbon compliance solution without the need for supplementary carbon saving measures, such as solar PV.

Emissions comparison

Running cost savings

With rising energy costs becoming a mainstream issue, there is a growing need for social housing providers to ensure heating systems deliver the lowest possible running costs.

Ground source heat pumps, as recognised by the Energy Savings Trust, provide the lowest cost heating and hot water solution.

Fitted with an accompanying new radiator system and hot water cylinder, a Kensa ground source heat pump will produce around three kilowatt hours of heat for each kilowatt hour of electricity it consumes, meaning running costs are consistent with mains gas.

Running cost comparisons

Retrofit example

Gas (85% efficient)LPG (85% efficient)Oil (85% efficient)Night Storage (100% efficient)ASHP (250% efficient)GSHP (320% efficient)
£447£776£623£980£526£443
Estimated total heating and hot water costs for a property with demand of 10,000kWh/yr

New build example

Gas (90% efficient)LPG (90% efficient)Oil (90% efficient)Night Storage (100% efficient)ASHP (320% efficient)GSHP (390% efficient)
£253£440£353£588£266£218
Estimated total heating and hot water costs for a property with demand of 6,000kWh/yr

We have already received glowing praise from our customers regarding the real savings they are making on their electricity bills since the ground source heat pumps have been installed.

Westward Housing

Ownership cost savings

While tenants will enjoy the benefit of low running costs, landlords will also appreciate low service and maintenance costs especially as the appliance can be easily accessed given its typical location outside the dwelling.

Protected either within the property itself – using Kensa’s unique Shoebox heat pump – or if externally located, within a weather-proof shelter, the ground source heat pump can be expected to provide a service life of at least 20 years.

 

Once installed, the borehole will remain in place for the lifetime of the building.

And because there is no fuel combustion, heat pumps require no annual safety inspection; while unlike some air source heat pumps, Kensa heat pumps are fully factory sealed meaning they require no annual F Gas inspection.

As such, lifetime ownership costs are far lower than any other technology, a benefit that can will accrue to the landlord.

Ground source heat pumps provide a source of affordable warmth for our tenants and were the best choice for us.

Ian Richardson, Chief Executive, Shropshire Rural Housing Association

Related Content

Brochures: Social housing: brochure

Download Kensa’s guide to ground source solutions for social housing providers with new build and retrofit projects. (Version 3)