Heat-only boiler prices

Heat-Only boilers are also known by a few other names including open vent, conventional or regular. They have a hot water cylinder, a cold-water storage tank and a feed and expansion tank. Most people choose to replace heat-only boilers, as they are an older style of boiler and are usually replaced with combi boilers which are smaller, therefore saving space.

Heat-only boilers are still a great choice for some households despite being an older boiler type, they can typically cope with a much larger demand for hot water and are often chosen for large homes or commercial properties.

How do Heat-only boilers work?

If you are considering purchasing a new regular boiler, then you may want to know a little bit about how it works. Typically, they are installed in homes which already have a traditional heating system due to the extra parts needed for it to operate which include a hot water cylinder, a cold-water storage tank and a tank that maintains the water level of the central heating.

The heat-only boiler uses a storage cistern with two feeds with one for cold water and one for hot. The water is then pumped through the system into either of the storage tanks and is used as needed. The reason that heat-only boilers are good for larger properties is that they don’t rely on pressure as much as other boiler types.

New Heat-only boiler price range (£399.17 - £4,685.43*)

There are lot of conventional boiler options available to suit a variety of different homes of all shapes and sizes. Some of the brands you can choose from that produce Heat-Only boilers include Vokera, Ariston, Baxi, Potterton, Glow-Worm, Ideal, Worcester Bosch & more.

Out of all the boiler prices we have found they range in price starting with the Vokera Easi-Heat 18V which is a 20kW gas conventional boiler with 5 years warranty at £399.17 and ranges all the way to the Ideal EvoMax 150kW gas conventional boiler which comes with a 2-year warranty and is priced at £4,685.43.

Why choose a Heat-only boiler

Is a regular boiler the right option for you? Here are some of the positive points of getting a new heat-only boiler installation we have found to help you make your decision:

Reputation for their reliability

Typically great for homes which have a large demand for hot water

Generally ideal for when there are several bathrooms

Usually easy to maintain as they're simple in design

Usually cheaper to swap a like for like Heat-Only boiler than change to a combi

Water pressure is normally great, even when several hot taps or showers are being used

Compare Heat-only boiler prices

BrandModel NameTypeFuelKWWarrantyTypical Price*
(Including VAT)
VokeraEasi-Heat 18VHeat-OnlyGas20kW5£399.17
VokeraMyNute 15VHEHeat-OnlyGas15kW2£442.00
VokeraMyNute 20VHEHeat-OnlyGas20kW2£492.00
AristonCLAS HE 24Heat-OnlyGas24kW2£585.00
Baxi212 Heat 12Heat-OnlyGas12kW3£630.00
Baxi412 Heat 12Heat-OnlyGas12kW5£650.00
Baxi215 Heat 15Heat-OnlyGas15kW3£660.00
Baxi415 Heat 15Heat-OnlyGas15kW5£675.00
PottertonPromax SL Heat 12Heat-OnlyGas12kW2£695.88
Baxi418 Heat 18Heat-OnlyGas18kW5£705.00
Glow-WormEnergy 15Heat-OnlyGas15kW2£708.76
Baxi224 Heat 24Heat-OnlyGas24kW3£714.00
Glow-WormEnergy 12Heat-OnlyGas12kW2£718.76
VaillantecoTEC plus 412Heat-OnlyGas12kW8£734.39
BaxiEcoBlue Heat 12Heat-OnlyGas12kW2£736.66
Baxi230 Heat 30Heat-OnlyGas30kW3£750.00
Baxi424 Heat 24Heat-OnlyGas24kW5£755.00
Glow-WormEnergy 18Heat-OnlyGas18kW2£771.26
Glow-WormEnergy 25Heat-OnlyGas25kW2£773.75
BaxiEcoBlue Advance Heat 13Heat-OnlyGas13kW7£780.16
BaxiEcoBlue Heat 15Heat-OnlyGas15kW2£783.10
IdealLogic Heat 24Heat-OnlyGas24kW2£792.51
Worcester-BoschGreenstar 12RiHeat-OnlyGas12kW5£807.76
IdealLogic Heat 15Heat-OnlyGas15kW2£810.18
IdealLogic Heat 12Heat-OnlyGas12kW2£817.50
VaillantecoTEC plus 415 15Heat-OnlyGas15kW8£825.27
Baxi430 Heat 30Heat-OnlyGas30kW5£830.00
ViessmannWB1B Vitodens 100-W 19Heat-OnlyGas19kW3£832.65
Worcester-BoschGreenstar 15RiHeat-OnlyGas15kW5£836.08
ViessmannWB1B Vitodens 100-W 13Heat-OnlyGas13kW3£836.13
AlphaCD13RHeat-OnlyGas13kw3£840.28
Glow-WormEnergy 30Heat-OnlyGas30kW2£843.76
ViessmannWB1B Vitodens 100-W 16Heat-OnlyGas16kW5£847.14
BaxiEcoBlue Heat 18Heat-OnlyGas18kW2£856.59
BaxiEcoBlue Advance Heat 16Heat-OnlyGas16kW7£868.27
ViessmannWB1B Vitodens 100-W 26Heat-OnlyGas26kW3£886.38
BaxiEcoBlue Heat 21Heat-OnlyGas21kW2£887.44
VaillantecoTEC plus 418Heat-OnlyGas18kW8£888.09
VokeraMynute 35HEHeat-OnlyGas35kw2£894.71
BaxiEcoBlue Heat 24Heat-OnlyGas24kW2£898.35
Worcester-BoschGreenstar 18RiHeat-OnlyGas18kW5£899.16
IdealLogic Heat 30Heat-OnlyGas30kW2£900.56
IdealLogic Heat 18Heat-OnlyGas18kW2£902.51
IdealLogic Plus Heat 15Heat-OnlyGas15kW5£906.25
BaxiEcoBlue Advance Heat 19Heat-OnlyGas19kW7£910.22
BaxiEcoBlue Advance Heat 25Heat-OnlyGas25kW7£917.70
IdealLogic Plus Heat 12Heat-OnlyGas12kW5£937.99
VaillantecoTEC plus 424 24Heat-OnlyGas24kW8£948.51
BaxiEcoBlue Advance Heat 30Heat-OnlyGas30kW7£950.74
Worcester-BoschGreenstar 24RiHeat-OnlyGas24kW5£954.62
AlphaCD18RHeat-OnlyGas18kw3£962.67
IdealLogic Plus Heat 24Heat-OnlyGas24kW5£981.16
VaillantecoTEC plus 430Heat-OnlyGas30kW8 £1,005.15
IdealLogic Plus Heat 18Heat-OnlyGas18kW5 £1,024.75
Worcester-BoschGreenstar 27RiHeat-OnlyGas27kW5 £1,053.53
IdealMexico HE 15Heat-OnlyGas15kW2 £1,068.17
PottertonPromax SL Heat 15Heat-OnlyGas15kW2 £1,071.60
AlphaCD24RHeat-OnlyGas24kw3 £1,075.92
Worcester-BoschGreenstar 30RiHeat-OnlyGas30kW5 £1,109.18
PottertonPromax SL Heat 18Heat-OnlyGas18kW2 £1,111.20
Worcester-BoschGreenstar 30CDi ClassicHeat-OnlyGas30kW5 £1,124.40
IdealMexico HE 18Heat-OnlyGas18kW2 £1,155.10
IdealLogic Plus Heat 30Heat-OnlyGas30kW5 £1,161.86
PottertonPromax SL Heat 24Heat-OnlyGas24kW2 £1,171.20
Worcester-BoschGreenstar Danesmoor Utility 12/18Heat-OnlyOil18kW2 £1,346.08
ViessmannWB1B Vitodens 100-W 35Heat-OnlyGas35kW5 £1,424.94
Worcester-BoschGreenstar FS 30CDiHeat-OnlyGas30kW5 £1,522.14
Worcester-BoschGreenstar 40CDi ClassicHeat-OnlyGas40kW5 £1,556.78
IdealMexico HE 24Heat-OnlyGas24kW2 £1,597.20
Worcester-BoschGreenstar Danesmoor 18/25Heat-OnlyOil18kW2 £1,699.20
Worcester-BoschGreenstar Danesmoor External 18/25Heat-OnlyOil18kW2 £1,811.75
Worcester-BoschGreenstar Danesmoor 25/32Heat-OnlyOil32kWI £1,862.33
Worcester-BoschGreenstar Danesmoor Utility 25/32Heat-OnlyOil32kW2 £1,862.33
PottertonPromax Store 90LHeat-OnlyGas24kW2 £1,862.63
IdealMexico HE 30Heat-OnlyGas30kW2 £1,962.82
PottertonPromax Store 150LHeat-OnlyGas24kW2 £2,064.34
Worcester-BoschGreenstar 42CDi FsHeat-OnlyGas42kW5 £2,213.79
Worcester-BoschGreenstar Danesmoor External 25Heat-OnlyOil25kW2 £2,227.73
IdealEvoMax 30Heat-OnlyGas30kW2 £2,279.61
Worcester-BoschGreenstar Utility 50/70Heat-OnlyOil70kW2 £2,306.20
VaillantecoTEC plus 438 38Heat-OnlyGas38kW8 £2,370.00
IdealEvoMax 40Heat-OnlyGas40kW2 £2,532.02
IdealMexico HE 36Heat-OnlyGas36kW2 £2,707.48
IdealEvoMax 60Heat-OnlyGas60kW2 £2,911.76
FerroliEnergy Top W125Heat-OnlyGas116kW1 £3,178.84
IdealEvoMax 80Heat-OnlyGas80kW2 £3,230.69
IdealEvoMax 100Heat-OnlyGas100kW2 £3,925.94
IdealEvoMax 120Heat-OnlyGas120kW2 £4,178.34
IdealEvoMax 150Heat-OnlyGas150kW2 £4,685.43

Heat-only boiler installation costs

Installing a conventional boiler can vary in price significantly dependant on what system you currently have in place and loads of other factors. The best way to determine the cost of installation is by having a surveyor visit your home as it’s impossible to provide you with a price without asking a lot of technical questions.

Here are just a few of the factors that determine how much your installation could cost:

• There may be extra parts that are required as part of the installation which will bring up the overall price, there could also be building work.

• Some regular boilers can be easier to install than others.

• Installation price can also be determined by where you live, as the location may have a high demand and installers may be limited.

• If you’re planning on moving the location of your boiler or any of the tanks, then it will usually cost you more.

• If it’s a like for like heat-only boiler swap, then it should be a lot cheaper due to the other elements like the water tanks which are required.

What Heat-only boiler do I need?

Regular boilers are typically for larger homes, but can also be supplied and fitted in smaller homes. The most important thing to look at when choosing a boiler for your home is the kW output as this determines the boilers ability to cope with the hot water demand. The main factor that determines the kW output you need is the number of bathrooms & radiators.

We have put together a small guide of what kW output you may require based on the size of your property:

24-27kW28-34kW35-42kW
1-2 bedroom3-4 bedroom4+ bedrooms
10 radiators15 radiators20 radiators
1 bathroom1-2 bathrooms2+ bathrooms

(This information has been supplied by Help-Link UK limited and has been produced for information purposes only and should not be used or relied upon as a substitute for professional advice by a suitably qualified engineer.)

* Prices correct as of December 2017 from our list of suppliers