Harnitek air-source heat pump installed on a UK brick home

Harnitek Heat Pumps for your home

A complete heat-pump system, designed around your home.

Explore transparent Harnitek and HeatBoost package starting points, then let HEG confirm heat loss, room output, hot water and installation scope through a proper survey.

Request a heat-pump estimate 01535 210050

Published packages from £4,550HeatBoost radiators includedGreenLinx monitoring included

£7,500 / £9,000

Current BUS routes, where eligible

HeatBoost radiators in published starting scope

Survey-led design before final price

Transparent starting packages

Tell us what heats your home, then choose the number of rooms.

Every published starting scope combines a Harnitek heat pump, Lux AC controller and HeatBoost radiators. The current Boiler Upgrade Scheme route can change the guide price, so start with the system you are replacing before HEG confirms the technical design.

What heating are you replacing?

Gas boiler: Guide prices assume the current £7,500 Boiler Upgrade Scheme grant where eligible.

How many rooms need heating?

5 rooms · Harnitek package

6kW

Smaller homes

A practical published starting point for a well-considered smaller home design.

Package price

£4,550

One-off payment for this 5-room Harnitek heat-pump package — gas boiler route.

9.9% APR finance illustration

Illustrative monthly payment

£58.82

per month for 120 months

Repayment term

About this illustration

This illustration uses the displayed package price and a 9.9% APR amortising calculation over 120 months. It is not an offer of credit or a final repayment quote. The lender confirms the final payment schedule, total amount payable and required agreement information.

Terms from 24 to 120 months are shown for finance-eligible packages. The 180-month option appears only where the package price is above £7,500 and remains subject to Ideal4Finance product eligibility.

Do not use an energy-saving estimate as a repayment plan. Repayments are due under the final finance agreement whether or not an estimate is achieved.

Home Energy Group Ltd is an Introducer Appointed Representative of Ideal Sales Solutions Ltd, t/a Ideal4Finance. Ideal Sales Solutions Ltd is a credit broker and not a lender (FRN 703401). Finance available subject to status. The rate offered is always provisional and will depend upon your personal circumstances, the loan amount and the term.

Understanding finance options

5 HeatBoost radiators · £7,500 BUS route, subject to scheme eligibility

A popular starting point 9kW Harnitek heat-pump package

5 rooms · Harnitek package

9kW

Typical family homes

A balanced starting package for many family-home surveys.

Package price

£4,750

One-off payment for this 5-room Harnitek heat-pump package — gas boiler route.

9.9% APR finance illustration

Illustrative monthly payment

£61.40

per month for 120 months

Repayment term

About this illustration

Do not use an energy-saving estimate as a repayment plan. Repayments are due under the final finance agreement whether or not an estimate is achieved.

Understanding finance options

5 HeatBoost radiators · £7,500 BUS route, subject to scheme eligibility

5 rooms · Harnitek package

12kW

Larger homes

For larger heating demand, subject to a room-by-room design.

Package price

£5,100

One-off payment for this 5-room Harnitek heat-pump package — gas boiler route.

9.9% APR finance illustration

Illustrative monthly payment

£65.93

per month for 120 months

Repayment term

About this illustration

Do not use an energy-saving estimate as a repayment plan. Repayments are due under the final finance agreement whether or not an estimate is achieved.

Understanding finance options

5 HeatBoost radiators · £7,500 BUS route, subject to scheme eligibility

5 rooms · Harnitek package

15kW

Higher-demand homes

For bigger properties and higher starting demand, always survey-led.

Package price

£5,400

One-off payment for this 5-room Harnitek heat-pump package — gas boiler route.

9.9% APR finance illustration

Illustrative monthly payment

£69.81

per month for 120 months

Repayment term

About this illustration

Do not use an energy-saving estimate as a repayment plan. Repayments are due under the final finance agreement whether or not an estimate is achieved.

Understanding finance options

5 HeatBoost radiators · £7,500 BUS route, subject to scheme eligibility

Optional ongoing care

Add a maintenance membership

View plan details →

This is a separate monthly direct debit over a 12-month agreement. It is not added to the one-off installation price or any finance illustration.

What the published 5-room packages include

Harnitek heat pump and Lux AC controller
Five Harnitek HeatBoost radiators
Survey-led system design and installation
GreenLinx monitoring, DNO application and Electrical Safety Certificate
MCS certificate and IAA 6-year protection for qualifying MCS-completed work

Find my starting package

Gas package guides assume the current £7,500 Boiler Upgrade Scheme contribution where eligible. LPG and oil guides show the current £9,000 route only where the property passes Ofgem’s off-gas-grid test and meets all scheme criteria. If that higher route does not apply, an eligible package may instead use the current £7,500 route. All-electric packages are quoted after HEG has checked the full scope. Final price depends on property survey, heat-loss calculation, eligibility, radiator count, pipework and installation scope.

Illustration explaining heating package costs and energy use

A clearer conversation about costs

Start with a transparent package, then design for your actual home.

The package shelf gives a useful published starting point. HEG then checks the property, heat loss, radiator output, hot-water requirements, grant pathway and installation scope before confirming a final proposal.

Running costs and comfort depend on the finished design, property performance, heating habits and electricity tariff. HEG does not use generic savings promises.

Request a heat-pump estimate

HeatBoost radiator in a comfortable domestic living room

Heating that works together

Your heat pump is only part of the comfort story.

A thoughtful design considers the heat source and how each room releases heat. HeatBoost radiators are a fan-assisted low-temperature option HEG can consider alongside Harnitek heat pumps.

Low-temperature focus

Room-by-room output is checked against the planned flow temperature.

Made for real homes

The survey looks at insulation, layouts, hot water and outdoor placement.

Connected handover

Published packages include GreenLinx monitoring and clear installation paperwork.

Clearer scope

HEG confirms design, certification and any radiator work before the final agreement.

Explore HeatBoost radiators

A system, not just an outdoor unit

See the pieces of a thoughtful home-heating conversation.

Good heat-pump design connects the outdoor unit, indoor emitters, property fabric, controls and a clear handover.

Illustration explaining a domestic Harnitek heat-pump heating journey

Understand the system first

A useful heat-pump conversation begins with how a system moves heat and how your home releases it.

Installer fitting a HeatBoost radiator in a domestic home

Match emitters to each room

HEG checks radiator output, planned flow temperature, pipework and the rooms that matter most.

HEG installation van outside a domestic home

Install and hand over clearly

The final system includes a practical handover, paperwork and GreenLinx monitoring where included.

HEG domestic heating installation photograph

A domestic installation with care

The survey shapes equipment position, pipe routes, room work and the practical plan for your own property.

What happens next

A straightforward route from first question to working system.

Explore a starting package

Use the guide to understand the current published package route.

Talk through your home

Share what you are replacing and how you use heating and hot water.

Survey and heat-loss design

HEG confirms the property, radiator outputs and installation scope.

Install and hand over

Your system, monitoring, certificates and aftercare are explained clearly.

Useful background, not homework

What can help before you request a heat-pump estimate?

A few details can make the first conversation clearer. These are optional preparation ideas, not required form fields. If something is unknown, tell us rather than guessing.

Existing documents, if available

If you already have an Energy Performance Certificate (EPC) or floor plan, keep it to hand as background. An older EPC may not reflect later improvements.

Changes you know about

Note any insulation work, extensions, window replacements or layout changes, especially since the EPC was prepared. You do not need to identify construction materials yourself.

Today's heating and hot water

Describe your current heat source, whether rooms use radiators or underfloor heating, and your hot-water arrangement. If you are unsure about the technical details, leave those for HEG to check.

Space, access and your questions

Think about possible outdoor space, room for a hot-water cylinder and obvious access restrictions. These are discussion points, not approved equipment locations. Ask what the assessment and later proposal will cover.

HEG still checks suitability through a detailed survey and room-by-room heat-loss calculations. You do not need to size the heat pump or choose equipment yourself.

You do not need to buy or upload documents to start a conversation with HEG. Preparation does not replace the assessment or turn an estimate request into automatic package pricing or a binding quotation.

Request a heat-pump estimate Ask HEG about your next step

Preparation guidance informed by Energy Saving Trust's heat-pump installation guide and detailed heat-loss assessment guidance. Sources reviewed 11 November 2026.

Plan with better information

Read before your heat-pump survey.

Every home is different. These HEG guides explain the decisions a proper survey is designed to answer, so you can start the conversation with clearer questions.

Older homes and heat pumps

A HEG guide to the property-specific questions worth checking before a heat-pump survey.

Read the guide

Heat pumps and radiators

A HEG guide to the practical role of radiators and room-by-room heating design.

Read the guide

Understanding fan-coil radiators

A HEG guide to the terminology and survey questions around fan-assisted heat emitters.

Read the guide

Grant and eligibility

We will help you understand the right Boiler Upgrade Scheme route.

The current standard heat-pump grant is £7,500 where eligible. A current £9,000 route can apply where an eligible property meets Ofgem’s formal off-gas-grid test and is replacing oil or LPG heating. HEG checks the relevant property, heating and scheme details before a final package is agreed.

Compare current grant routes

Harnitek heat pump fitted with neat pipework at a domestic property

The conversation starts with your home—not a generic promise.

Clear starting prices, a transparent grant assumption and a proper survey before a final design.

Heat-pump questions

Helpful answers before you decide.

Could a heat pump suit my home?

Many homes can be considered. HEG confirms insulation, heat loss, radiator output, outdoor location, hot-water requirements and electrical supply through a proper survey and design.

What do the published package prices include?

The published starting packages combine a Harnitek unit, Lux AC controller, five HeatBoost radiators, installation and the listed commissioning, certification, monitoring and guarantee items. Final scope is confirmed by survey.

How do the £7,500 and £9,000 Boiler Upgrade Scheme routes work?

The current standard heat-pump grant is £7,500 where eligible. The current £9,000 route is for eligible properties that meet Ofgem’s formal off-gas-grid test and are replacing oil or LPG heating. HEG confirms the live scheme rules, property and proposed design before finalising an installation price.

Will I need new radiators?

A heat-loss and radiator-output check is essential. HeatBoost radiators can be considered where a low-temperature, fan-assisted option is appropriate, but the final quantity and locations are survey-led.

What Our Customers Say

Real Reviews from Real Customers

Trustpilot

Google Reviews

“Home Energy Group Ltd is the best. They went above and beyond to help me. A previous company botched fitted a VP panels and Battery Inverter system — Home Energy Group Ltd are the only company who willingly rectified all the previous installation ensuring everything was correct and safe. I will always recommend them.”

Colin Smith

United Kingdom · Nov 2025

Trustpilot

“Called quite a few companies re installing a battery storage system. Most were quite pushy. When I called HEG, I was given good, easy to understand helpful information. They answer the phone promptly and are always helpful. The two electricians that installed the system have done a good job and left the house clean.”

Andrew Bartlett

United Kingdom · Jun 2025

Trustpilot

“Great service (thanks Tracy), transparent competitive pricing. Fast delivery. Very responsive.”

Michael Wright

United Kingdom · Oct 2025

Trustpilot

“Tracy from HEG stood out by providing a very competitive price along with clear, helpful information. The team's responsiveness and excellent aftercare have given me complete confidence that I made the right choice in choosing HEG.”

Simmondeep

United Kingdom · Jan 2026

Trustpilot

“Excellent sales knowledge of product and options with superb installation staff. Polite, efficient and professional.”

Colin Charlton

United Kingdom · May 2026

Trustpilot

“They are clearly a quality business. I found the prices to be reasonable. They are easy to contact on the phone — we don't get that much these days! The engineer turned up on the planned day. He was really good and clearly cared about his work. I would fully recommend them.”

Wayne

United Kingdom · May 2026

Trustpilot

“Had problems with our solar set up. Knowledgeable, very responsive and saved us £££ on call out fees with a simple fix. Highly recommend.”

Paul Butterfield

United Kingdom · Mar 2026

Trustpilot

“From the initial survey right through to the installation, the whole team at HEG were brilliant. The engineers were tidy, professional and explained everything clearly. Couldn't be happier with our solar panels.”

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Yorkshire · 2025

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Customer feedback is shown on HEG’s pages in the same review-card format used on our homepage, so you can read it without leaving the site.

Ready to request a heat-pump estimate?

Tell HEG about your home, then we will review the detail before a survey-led proposal.

Request a heat-pump estimate

Ongoing care is optional

Explore planned HEG Care memberships for eligible heating systems. Membership is separate from your installation price, warranty and any repair work.

Explore maintenance