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Gas Heat Only Boilers

A heat only boiler, sometimes referred to as a conventional or regular boiler, suits homes with a traditional heating and hot water system. Heat Only boilers require a cold water tank and expansion cistern in the loft to provide central heating and hot water. This option is most suitable when high amounts of stored water are required, or minimal disruption is required when replacing an old boiler.

You can expect to pay anything from £600 up to £1400 for a domestic heat only boiler gas boiler, depending on the output required. The costly market-leading brands such as Vaillant and Worcester Bosch have similar or identical inner parts to lower-priced models a lot of the time. Call our sales team to make sure you're getting the best deal.

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1 - 14 Of 14 Products
Ariston Clas HE Regular 24 Conventional Gas Boiler
SAVE 54%
£668.95 RRP £1,464.00
Ariston E-System One 24Kw Gas Boiler
SAVE 54%
ARIS3301056
In Stock
3 Days
£766.95 RRP £1,680.00
Ariston E-Combi ONE 24 Condensing Combi Gas Boiler
SAVE 54%
£766.95 RRP £1,680.00
Ariston E-System One 30KW Gas Boiler
SAVE 54%
ARIS3301057
In Stock
3 Days
£827.95 RRP £1,812.00
Ariston E-Combi One 30Kw Combi Gas Boiler
SAVE 54%
ARIS3301132
In Stock
3 Days
£827.95 RRP £1,812.00
Ariston Clas System One 18Kw System Gas Boiler
SAVE 54%
£942.95 RRP £2,064.00
Ariston Clas One 24 Combi Gas Boiler
SAVE 54%
ARIS3301043
In Stock
3 Days
£969.95 RRP £2,124.00
Ariston Clas System One 24Kw System Gas Boiler
SAVE 54%
£1,029.95 RRP £2,256.00
Ariston Clas One 30 Combi Gas Boiler
SAVE 54%
ARIS3301044
In Stock
3 Days
£1,051.95 RRP £2,304.00
Ariston Clas System One 30Kw System Gas Boiler
SAVE 54%
£1,166.95 RRP £2,556.00
Ariston Clas One 38 Combi Gas Boiler
SAVE 54%
ARIS3301045
In Stock
3 Days
£1,193.95 RRP £2,616.00
Ariston Clas Net One 24 Combi Gas Boiler
SAVE 54%
ARIS3301049
In Stock
3 Days
£1,366.95 RRP £2,995.20
Ariston Clas Net One 30 Combi Gas Boiler
SAVE 54%
ARIS3301050
In Stock
3 Days
£1,466.95 RRP £3,213.60
Ariston Clas Net One 38 Combi Gas Boiler
SAVE 54%
ARIS3301051
In Stock
3 Days
£1,565.95 RRP £3,432.00

BTU Calculator

Below is a tool that can enable you to calculate the BTU requirements needed for your room.

There are many factors that affect this calculation including the outdoor temperature, thickness of exterior walls and the quality of insulation installed. You should also ensure you have a boiler that is capable of generating necessary output for all of the radiators in your property.

Our BTU calculator should be used as a guide only, the actual BTU requirements may be slightly different to what our calculator will produce. If you need further help, please contact us.

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1 - 36 Of Products