Suitable for kitchen cupboards
Glow-worm Compact
5-Year Warranty*
Installed from
Get my boiler quote
£2,195£2,295
Boiler, fitting & VAT included
Glow-worm boilers.
Prices & installation.
Heating and hot water to suit your home. Get a Glow-worm boiler from £2,195, including installation and VAT.
- Gas Safe registered engineers
- Fixed installation price
Glow-worm Compact C24 24kWBoiler, fitting & VAT included
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Glow-worm boiler prices, with fitting included.
Our Glow-worm boilers start from £2,195 installed. Compare the range below, then get a fixed quote for your home. Prices include the boiler, installation and VAT.
Combi boilers
*Warranty length depends on the model and package. Manufacturer terms, registration and annual servicing requirements apply. Your quote confirms the cover included.
What affects the price?
Your boiler model, hot-water demand and installation work all matter. Moving the boiler or converting from a regular boiler to a combi can cost more than a like-for-like replacement.
Which boiler type suits your home?
Your hot-water use and existing heating system matter more than choosing the biggest boiler.
Combi boilers
Heating and hot water from one unit. A combi heats water when you turn on a tap, without a separate hot-water cylinder.
A practical option when you want to free up space.
System boilers
A system boiler works with a hot-water cylinder, storing hot water ready for use.
Worth considering if several bathrooms need hot water at the same time.
Regular boilers
Also called heat-only boilers, these work with a separate cylinder and usually a cold-water tank.
Replacing like for like can avoid changing the whole heating system.
Your Glow-worm installation, handled by iHeat.
Founded by heating engineers, iHeat has a network of over 500 approved boiler installers across England, Scotland and Wales.
Our in-house engineers review installations against our 60-point checklist. Your installation includes commissioning, a demonstration of your controls and registration of your manufacturer warranty.
Meet our engineers
- 1
Find your boiler
Answer a few questions about your home to compare suitable boilers and fixed installation prices online.
- 2
Choose your installation day
Pick an available date and payment option. We review your installation photos and confirm the work before your engineer arrives.
- 3
Get the heating on
Your Gas Safe registered engineer installs and commissions your boiler, then shows you how to use it. Our aftercare team is here if you need help.
Real installations. Real customers.
Hear from iHeat boiler customers about their installation experience.
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Ways to pay.
Pay in full or compare boiler finance with V12 Retail Finance.
Pay in full
Credit or debit cardPay for your installation without taking out a finance agreement.
0% APR
12 or 24 monthsInterest-free options on selected boilers and plans, with deposits from 0% to 50%.
9.9% APR representative
36 to 120 monthsChoose 36, 48, 60 or 120 months. Interest increases the total amount you repay.
Representative example
Illustrative boiler finance example, not the price of a Glow-worm model: cash price £1,945; deposit £0; amount of credit £1,945; 9.9% APR representative; fixed annual borrowing rate 9.48%; term 120 months; 119 monthly repayments of £25.14 and a final repayment of £25.78; total interest £1,072.44; total payable £3,017.44; fees £0.
Credit is subject to status, affordability and lender approval. Available plans depend on your boiler and package. LeadsUK Ltd trading as iHeat is a credit broker, not a lender.
Compare boiler finance options and termsGlow-worm boiler FAQs
Choosing your boiler, planning the installation and looking after it.
How much does a Glow-worm boiler cost to install?
Glow-worm boilers start from £2,195 including installation and VAT with iHeat. Your price depends on the model and work required, including whether you are keeping the same boiler type and location.
A boiler-only retail price does not include fitting. Our online quote shows a fixed installation price for your home so you can compare the complete package.
Get my boiler quoteWhich Glow-worm boiler should I choose?
Start with your hot-water demand, existing system and available space. A combi supplies hot water on demand without a cylinder. A system or regular boiler works with stored hot water, which can suit homes using several bathrooms.
There is no single best model for every home. Our quote journey helps you compare suitable Glow-worm boilers. If you are considering a different boiler type or moving it, include this so the installation work is covered in your quote.
What is included in my Glow-worm installation?
Your quote sets out the boiler, fitting, VAT and equipment included. A Gas Safe registered engineer installs and commissions your boiler, completes the handover and explains the controls. iHeat arranges the warranty registration and installation paperwork.
Our standard scope includes flues up to 5 metres and gas-supply upgrades up to 12 metres. Longer routes or work outside the agreed scope may cost extra and will be discussed before it begins. See our installation terms for the full scope.
How long does installation take, and is next-day fitting available?
A straightforward like-for-like replacement is usually completed in one day. Moving the boiler or changing system type may take longer. We review the work and confirm the arrangements before installation.
Next-day fitting is available on weekdays, subject to availability and our 3pm booking requirements, including payment and installation photos. Your quote shows the dates available for your home.
How long is the Glow-worm warranty?
The warranty depends on your model and installation package. Check the length shown on the product card and your final quote. Manufacturer guarantees can also depend on the equipment installed, registration and the applicable terms.
You must keep up with the manufacturer’s servicing requirements. We send free annual service reminders; the service itself is paid separately and can be booked with iHeat or another appropriately qualified Gas Safe registered engineer.
Can I spread the cost of a Glow-worm boiler?
Yes. We offer 0% APR over 12 or 24 months on selected boilers and plans, plus 9.9% APR representative over 36, 48, 60 or 120 months through V12 Retail Finance. Credit is subject to status, affordability and approval.
Your quote shows the available plans, deposit, monthly repayments and total payable. Compare the total cost as well as the monthly amount, particularly with longer interest-bearing agreements.
See ways to pay and representative exampleWho do I contact if I need help after installation?
The iHeat aftercare team is here to support you after installation. We can review the problem and arrange an installation recall or raise a manufacturer warranty call on your behalf when needed.
We aim to respond to aftercare issues within 24–48 hours, and important issues such as leaks within 24 hours. These are response targets, not guaranteed repair times.
Find your Glow-worm boiler.
Compare suitable models, installation prices and ways to pay.
Get my boiler quote