Our Services

Heat Pump Design


Commissioning & Maintenance

MCS Design

Choosing an experienced ASHP supplier is essential when it comes to Heat Pump Design you need to be confident that the system will be efficient and work as expected, keeping running costs low. 3F Heating offers the following as standard:

  • Advice and guidance on the suitability of an ASHP for the project
  • Full heat loss calculations for the property in order to correctly size the ASHP
  • An accurate quotation for the system components in line with MCS and RECC standards
  • Support with MCS compliance, including on-site commissioning
  • Mechanical and electrical drawings specific to the installation as well as clear installation manuals and customer user guides


The heat pump controls and pipework layout are very similar to a traditional gas or oil boiler, configured as a Y or S plan industry standard layout.

  • The ASHP is placed on a flat concrete base external to the property with the appropriately sized flow and return heating pipes and electrical power cable running from the unit into the property
  • Electrical work should be carried out by a qualified electrician in the conventional way as you would for a gas or oil boiler

Commissioning and maintenance

Once the installation of the mechanical and electrical heat pump components is completed, the ASHP unit will be ready for commissioning. We handle all the MCS paperwork putting the clients at ease. We aim to provide the best service and as smooth handover as possible,


Frequently Asked Questions

What is RHI?

The Domestic Renewable Heat Incentive is a government scheme that helps eligible households to offset the installation cost of renewable energy sources. Installing a renewable system costs more upfront than a traditional fossil fuel boiler, so the scheme is designed to promote the installation of technologies such as air source heat pumps, ground source heat pumps and solar thermal energy. As a result, renewables are more accessible and affordable for homeowners and emissions are reduced in line with the government’s environmental goals.

The RHI offers quarterly payments to homeowners over a seven-year period, based on estimates of the property’s annual heating consumption and the amount of green energy produced. The RHI scheme is available for homeowners installing eligible renewable systems in both new build and retrofit properties, with or without access to mains gas.

What is the Green Homes Grant?

The Green Homes Grant is a government scheme where homeowners can apply for vouchers to cover up to two thirds of the cost of qualifying energy-efficient or low carbon home improvements.

The grant encourages the installation of two main primary measures: insulation (to improve the fabric and efficiency of the building) and low carbon heating systems, which includes air and ground source heat pumps and solar thermal.

The maximum value of the voucher received is £5000, or £10,000 for households on lower incomes. The grant is available until 31st March 2022.

Am I eligible for the Green Homes Grant?

To qualify for the Green Homes Grant you must:

  • Own your home in England or be a private or social landlord
  • Be installing a qualifying energy-efficient measure into an existing home (improving your existing property, rather than building a new house or extending)
  • Use a local installer that is TrustMark accredited and also MCS certified, if using the grant for a heat pump or solar thermal system. You can find your local installer on the Simple Energy Advice website

Pavel Kolchagov

Director & Installer

0203 7125213