Many of our domestic heating products are eligible for financial support thanks to the Domestic RHI Scheme, designed to encourage homeowners to use renewable energy sources. With advanced heating technology from Viessmann, you could join the thousands of UK homeowners already receiving payments.

The Domestic Renewable Heat Incentive (Domestic RHI) is operated by the government and offers financial incentives to promote the use of renewable heat in order to help the UK reduce its carbon emissions and meet its renewable energy targets.

Once you qualify for the scheme, you can enjoy quarterly payments for seven years for the amount of clean, green renewable heat that your system is estimated to produce. To make it even easier, you’ll know straight away which Viessmann products qualify as they are already approved. The scheme is open to homeowners replacing or supplementing their existing heating system, as well as those fitting a new heating system in a new build or renovation project.

The Domestic RHI Scheme covers four eligible renewable technology types:

  1. biomass only boilers and biomass pellet stoves
  2. air source heat pumps
  3. ground source heat pumps
  4. flat plate and evacuated tube solar thermal panels.


To discover and compare just how much you could potentially earn on these different technologies, we’ve prepared some examples below for urban and rural properties.

Whether you are already enjoying using Viessmann heating products in your home or are interested in fitting our technology in your home, our customer service team will be happy to provide more information about which of our technologies qualify for the Domestic RHI Scheme and how to take advantage of it. We can also put you in touch with a suitably qualified installer to help you find the optimum solution for your home. 

Terraced Property RHI Example*

Typical example for illustration purposes of a 2 bedroom terraced property fitted with an air source heat pump combined with the RHI grant scheme.

*Samples shown are based on key assumptions for current gas rate prices. Charts can fluctuate depending on the property square metre area and overall thermal loss. This illustration was based on a sample terraced property built in the 1960's

Over 20 year RHI period:
ASHP Gas
Energy cost - renewable £10,741 £0
Energy cost - non-renewable £415 £11,554
RHI payment £4,201 £0
Total costs including service costs £10,786 £15,386
Annual fuel costs without RHI- service and loan costs not included. This chart is provided to give a view without the inclusion of the renewable heat incentive.

20 Year View

Annual fuel costs with RHI over 20 Years Service and loan costs not included. The first seven years indicate the RHI payback costs and savings.

20 Year View

Gas vs Air Source carbon emissions semi-detached property. Helping the UK towards emission targets through adoption of new technology.

20 Year View

3 bedroom semi-detached property*

Typical example for illustration purposes of a  bedroom semi-detached property with an air source heat pump combined with the RHI grant scheme.

*Samples shown are based on key assumptions for current gas rate prices. Charts can fluctuate depending on the property square metre area and overall thermal loss. The illustration is based on a sample semi-detached property built in the 1980's 

Over 20 year RHI period:
ASHP Gas
Energy cost - renewable £13,330 £0
Energy cost - non-renewable £830 £15,406
RHI payment £5,898 £0
Total costs including service costs £12,094 £19,237
Annual fuel costs without RHI- service and loan costs not included. This chart is provided to give a view without the inclusion of the renewable heat incentive.

20 Year View

Annual fuel costs with RHI over 20 Years Service and loan costs not included. The first seven years indicate the RHI payback costs and savings.

20 Year View

Gas vs Air Source carbon emissions semi-detached property. Helping the UK towards emission targets through adoption of new technology. 

20 Year View

4 bedroom detached property*

Typical example for illustration purposes of a 4 bedroom detached property fitted with an air source using using the RHI grant scheme.

*Samples shown are based on key assumptions for current gas rate prices. Charts can fluctuate depending on the property square metre area and overall thermal loss. 

This illustration is based on a sample detached property built after 2010. 

Over 20 year RHI period:
ASHP Gas
Energy cost - renewable £10,278 £0
Energy cost - non-renewable £1,037 £12,196
RHI payment £4,895 £0
Total costs including service costs £10,252 £14,751
Annual fuel costs without RHI- service and loan costs not included. This chart is provided to give a view without the inclusion of the renewable heat incentive.

20 Year View

Annual fuel costs with RHI over 20 Years Service and loan costs not included. The first seven years indicate the RHI payback costs and savings.

20 Year View

Gas vs Air Source carbon emissions detached property helping the UK towards emission targets through adoption of new technology.

20 Year View