A heat-only boiler, also know as a 'regular' boiler, works with a hot water tank on a open vented or sealed heating system. Heat only boilers can be very economical to install. Prices range from around £480 for a small, entry-level boiler to £1,600 for a large, premium range model. In this guide, we compare the prices, sizes, efficiencies and warranty lengths of 67 models from nine of the leading boiler manufacturers in the UK, including Worcester Bosch, Baxi, Ideal and Vaillant. The best heat only boiler for you will be based on your property size and your budget. After you have reviewed individual boiler prices, why not try our Boiler Quote Calculator for a bespoke installation cost, including the cost of the boiler.
Heat Only Boiler Guide | We Compare Prices on 67 Boiler Models
What is a heat only boiler? Who offers the best heat only boiler prices in 2019?
Overview of Heat Only Boilers
A heat only boiler (also known as a Regular boiler or Conventional boiler) provides heat directly to the radiators and works with a vented hot water tank to provide hot water. Heat only boilers can work on 'open vented' or 'sealed systems' (to work out which system you have and the advantages and disadvantages of each read our Guide to Open Vented and Sealed Systems). Replacing a heat only boiler is very cost effective, however long term maintenance costs will be higher as many of the systems components (pumps, valves etc) are external to the boiler.
|2 bed house||Price||Standard warranty||Free extended warranty||Central heating output||Efficiency|
|Main heat only boiler||15||£505.00||2||2||15||89%|
|Baxi 200 Heat||15||£677.00||3||3||16||89%|
|Baxi 400 Heat||15||£691.00||5||5||16||89%|
|Glow Worm Energy Regular||15||£722.00||2||2||15||89%|
|Ideal Logic Heat||15||£730.00||2||2||15||89%|
|Vaillant ecoFIT pure regular
|Potterton Promax SL Heat||15||£751.00||2||2||15||89%|
|Ideal Logic + Heat||15||£796.00||7||7||15||89%|
|Worcester Bosch Greenstar Ri
|Vaillant ecoTEC plus regular||15||£822.00||5||7-10||15||89%|
|Viessmans Vitodens 100-W Regular||16||£841.00||5||5||16||90%|
|Baxi Ecoblue Heat||15||£843.00||2||2||16||89%|
|Baxi Ecoblue Advance Heat||16||£855.00||7||7||16||89%|
|Larger properties||Price||Standard warranty||Free extended warranty||Central heating output||Efficiency|
|Viessmans Vitodens 100-W Regular
|Vaillant ecoFIT pure regular||35||£1,449.00||2||7-10||35||89%|
|Vaillant ecoTEC plus regular||35||£1,535.00||5||7-10||35||89%|
|Worcester Bosch Greenstar Classic Cdi