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Heat Only Boilers

Heat only boilers are also known as open vent, conventional or regular boilers. They heat your central heating and hot water when installed as part of a heating system together with a hot water storage cylinder, cold water storage tank, plus a feed and expansion tank (which is usually stored in the loft above the boiler to provide a good head of water). If the boiler you’re replacing is very old, it is most likely a heat only boiler. One of the other clues is that you’ll have a separate circulating pump, instead of one inside the boiler. We keep a huge stock of efficient condensing heat only boilers from all the leading brands such as Potterton, Worcester, Vaillant, Baxi and Glow-worm. In fact, we have all the heat only boilers you need at the lowest prices.

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Showing items 91-120 of 147

Worcester Greenstar 18Ri Regular Boiler, Quick-List Pack

Worcester Greenstar 18Ri Regular Boiler, Quick-List Pack

Starting at £0.00 £0.00

Customise to Check Stock
Worcester Greenstar 21Ri Regular Boiler, Quick-List Pack

Worcester Greenstar 21Ri Regular Boiler, Quick-List Pack

Starting at £0.00 £0.00

Customise to Check Stock
Worcester Greenstar 24Ri Regular Boiler, Quick-List Pack

Worcester Greenstar 24Ri Regular Boiler, Quick-List Pack

Starting at £0.00 £0.00

Customise to Check Stock
Worcester Greenstar 30Ri Compact Regular Boiler, Quick-List Pack

Worcester Greenstar 30Ri Compact Regular Boiler, Quick-List Pack

Starting at £0.00 £0.00

Customise to Check Stock
Worcester Greenstar 27Ri Compact Regular Boiler, Quick-List Pack

Worcester Greenstar 27Ri Compact Regular Boiler, Quick-List Pack

Starting at £0.00 £0.00

Customise to Check Stock
Ideal Logic Heat2 H12 Boiler, Quick-List Pack

Ideal Logic Heat2 H12 Boiler, Quick-List Pack

Starting at £0.00 £0.00

Customise to Check Stock
Ideal Logic Heat2 H15 Boiler, Quick-List Pack

Ideal Logic Heat2 H15 Boiler, Quick-List Pack

Starting at £0.00 £0.00

Customise to Check Stock
Ideal Logic Heat2 H18 Boiler, Quick-List Pack

Ideal Logic Heat2 H18 Boiler, Quick-List Pack

Starting at £0.00 £0.00

Customise to Check Stock
Ideal Logic Heat2 H24 Boiler, Quick-List Pack

Ideal Logic Heat2 H24 Boiler, Quick-List Pack

Starting at £0.00 £0.00

Customise to Check Stock
Ideal Logic Heat2 H30 Boiler, Quick-List Pack

Ideal Logic Heat2 H30 Boiler, Quick-List Pack

Starting at £0.00 £0.00

Customise to Check Stock
Ideal Logic+ Heat2 H12 Boiler, Quick-List Pack

Ideal Logic+ Heat2 H12 Boiler, Quick-List Pack

Starting at £0.00 £0.00

Customise to Check Stock
Ideal Logic+ Heat2 H15 Boiler, Quick-List Pack

Ideal Logic+ Heat2 H15 Boiler, Quick-List Pack

Starting at £0.00 £0.00

Customise to Check Stock
Ideal Logic+ Heat2 H18 Boiler, Quick-List Pack

Ideal Logic+ Heat2 H18 Boiler, Quick-List Pack

Starting at £0.00 £0.00

Customise to Check Stock
Ideal Logic+ Heat2 H24 Boiler, Quick-List Pack

Ideal Logic+ Heat2 H24 Boiler, Quick-List Pack

Starting at £0.00 £0.00

Customise to Check Stock
Ideal Logic+ Heat2 H30 Boiler, Quick-List Pack

Ideal Logic+ Heat2 H30 Boiler, Quick-List Pack

Starting at £0.00 £0.00

Customise to Check Stock
Ideal Logic Max Heat2 H12 Boiler c/w Ideal System Filter, Quick-List Pack

Ideal Logic Max Heat2 H12 Boiler c/w Ideal System Filter, Quick-List Pack

Starting at £0.00 £0.00

Customise to Check Stock
Ideal Logic Max Heat2 H15 Boiler c/w Ideal System Filter, Quick-List Pack

Ideal Logic Max Heat2 H15 Boiler c/w Ideal System Filter, Quick-List Pack

Starting at £0.00 £0.00

Customise to Check Stock
Ideal Logic Max Heat2 H18 Boiler c/w Ideal System Filter, Quick-List Pack

Ideal Logic Max Heat2 H18 Boiler c/w Ideal System Filter, Quick-List Pack

Starting at £0.00 £0.00

Customise to Check Stock
Ideal Logic Max Heat2 H24 Boiler c/w Ideal System Filter, Quick-List Pack

Ideal Logic Max Heat2 H24 Boiler c/w Ideal System Filter, Quick-List Pack

Starting at £0.00 £0.00

Customise to Check Stock
Ideal Logic Max Heat2 H30 Boiler c/w Ideal System Filter, Quick-List Pack

Ideal Logic Max Heat2 H30 Boiler c/w Ideal System Filter, Quick-List Pack

Starting at £0.00 £0.00

Customise to Check Stock
Navien LCB700 Blue Flame 21kW RS Internal Regular Oil Boiler

Navien LCB700 Blue Flame 21kW RS Internal Regular Oil Boiler

£1,674.00 £1,395.00
1 Available for Delivery
Select your local store for Stock Availability.
Navien LCB700 Blue Flame 28kW RS Internal Regular Oil Boiler

Navien LCB700 Blue Flame 28kW RS Internal Regular Oil Boiler

£1,742.40 £1,452.00
6 Available for Delivery
Select your local store for Stock Availability.
Navien LCB700 Blue Flame 36kW RS Internal Regular Oil Boiler

Navien LCB700 Blue Flame 36kW RS Internal Regular Oil Boiler

£2,211.60 £1,843.00
2 Available for Delivery
Select your local store for Stock Availability.
Navien LCB700 Blue Flame 21kW RSX External Regular Oil Boiler

Navien LCB700 Blue Flame 21kW RSX External Regular Oil Boiler

£1,772.40 £1,477.00
1 Available for Delivery
Select your local store for Stock Availability.
Navien LCB700 Blue Flame 28kW RSX External Regular Oil Boiler

Navien LCB700 Blue Flame 28kW RSX External Regular Oil Boiler

£1,845.60 £1,538.00
2 Available for Delivery
Select your local store for Stock Availability.
Navien LCB700 Blue Flame 36kW RSX External Regular Oil Boiler

Navien LCB700 Blue Flame 36kW RSX External Regular Oil Boiler

£2,341.20 £1,951.00
2 Available for Delivery
Select your local store for Stock Availability.
Worcester Greenstar 8000+ 30 Regular Boiler

Worcester Greenstar 8000+ 30 Regular Boiler

£1,547.66 £1,289.72
19 Available for Delivery
Select your local store for Stock Availability.
Worcester Greenstar 8000+ 35 Regular Boiler

Worcester Greenstar 8000+ 35 Regular Boiler

£1,849.72 £1,541.43
9 Available for Delivery
Select your local store for Stock Availability.
Worcester Greenstar 8000+ 40 Regular Boiler

Worcester Greenstar 8000+ 40 Regular Boiler

£2,154.89 £1,795.74
9 Available for Delivery
Select your local store for Stock Availability.
Worcester Greenstar 8000+ 45 Regular Boiler

Worcester Greenstar 8000+ 45 Regular Boiler

£2,457.98 £2,048.32
12 Available for Delivery
Select your local store for Stock Availability.

Showing items 91-120 of 147