What is the Renewable Heat Incentive?

The Domestic Renewable Heat Incentive (RHI) is a government financial incentive that promotes the use of renewable technologies, such as heat pumps or solar thermal. Eligible applicants receive quarterly payments for seven years based on the amount of clean, green renewable heat their system produces.

Since its launch in April 2014, more than 25,000 renewable heating systems have been successfully installed. And it’s estimated that 1366kT of CO₂ will be saved across the lifetime of the scheme by those accredited in the first 10 months. That’s the equivalent of 6807 journeys to the moon and back!

The scheme is specifically targeted at, but not limited to, homes off the gas grid, as these are the properties that have the potential to benefit the most from renewables.

In a property with no access to the gas grid the savings are obvious. A property with an electric boiler feeding radiators would cost approximately double the amount to run each year than a heat pump with a typical Coefficient of Performance (CoP)*. The heat pump also needs electricity to run but far less than a radiator system as its efficiency is much greater.

Heat pumps and the RHI

Heat pumps are ideal off-grid solutions that are eligible for the RHI and offer decent payback tariffs. There are two main types of heat pump, ground source (GSHP) and air source (ASHP), with a wide range of options available in terms of heat output:

  • ASHPs are an affordable option and suitable for properties with less outside space. The unit sits outside the property with the cylinder, buffer tank and associated control equipment fitted inside.
  • GSHPs, on the other hand, are fitted indoors with the ground loops or boreholes placed in the ground outside. GSHPs need more space both for the unit inside the property and for the ground loops externally and they are also more expensive to purchase and install, given the groundwork requirement, but the RHI tariff level is set at a higher level to reflect this.


RHI Tariff payment
pence / kWh
Possible RHI payments over 7 years using Nu‑Heat renewable technologies*
An average two-bedroomed house, using 15,000kWh of heating per year with a SPF of 3.4 on GSHP and 2.7 on ASHP.
Solar thermal based on average 3-bedroomed, 4-person household using 49,640 litres of hot water p.a.
May 2014.


Installation and the RHI

In order to be eligible for payments, the chosen renewable system and the installer/commissioning engineer must be MCS approved – which is something that Nu-Heat can help both homeowners and installers with. The legislation aims to ensure that all renewables systems are installed to the highest standard and operate efficiently.

*CoP – Coefficiency of Performance: the measure used to display heat pump efficiency
In a well-insulated property every single kilowatt of electricity used to power the heat pump can provide up to three kilowatts of free energy. This ratio is known as the CoP.

For more information on heat pumps and the RHI give us a call on 01404 540650.

Nu-Heat fundraisers!

Over the last few months we have been fundraising for a number of different charities and causes – with one being particularly close to all of our hearts, here at Nu-Heat.

Support equipment for Jenny

Nu-Heat Receptionist, Jenny, sadly suffered a stroke in November 2014 and consequently spent a few months in hospital rehabilitating. Jenny has been a warm and energetic part of the Nu-Heat team for over eight years and is one of the most familiar voices to our customers.

We were keen to see Jenny back in the comfort of her own home so set about raising funds to enable the installation of support equipment. And, we’re very happy to report that she is now settled at home where she’ll continue on the road to recovery.

Bath Half Marathon

Bath Half Marathon

Senior Systems Administrator, Nick, who you may remember from Nu-Heat’s charity bike ride, has been raising money for charity once again. This time it was for Diabetes UK, in memory of his much loved Grampy who very sadly and unexpectedly passed away in January 2014. Nick took part in the famous Bath Half and jointly raise over £1000 with his fellow running companions.

“The weather was kind and the streets were lined with well-wishers, which made for a really enjoyable day.”

Well done, Nick. Another great effort and a substantial amount of money raised.

Comic Relief

Red Nose Day

And, we couldn’t see Red Nose Day pass without doing ‘something funny for money’! Staff made donations and wore red for the day – with those that wore anything particularly outlandish donating rather more!

Festive dress up in aid of Alzheimer’s Society


Today Nu-Heat staff donned their best festive attire to raise funds for Alzheimer’s Society.

Alzheimer’s Society is a membership organisation, which works to improve the quality of life of people affected by dementia in England, Wales and Northern Ireland.

Thank you to all those that took part and made a valuable contribution.

For more information about Alzheimer’s Society or to make a donation visit