Gas boilers

53 companies | 418 products
Wall-mounted / for domestic use / condensing

Optimized condensation for even more savings Every effort has been made to optimize...

Floor-mounted / for domestic use / condensing

FLOOR-STANDING CONDENSING GAS BOILER PRESTIGE 14 20 kW With an architecture...

Floor-mounted / for domestic use / condensing

PRESTIGE Condensation 45 kilowatts is also equipped with...

Wall-mounted / for domestic use / for heating only

UP to 109 % efficiency With the condensation Hydromotrix 25, 32 and 45...

Wall-mounted / for domestic use / condensing

FEATURES: Wall-hung condensing...

Wall-mounted / for domestic use / for heating only

FEATURES: Wall-hung condensing boilers with...

Wall-mounted / for domestic use / for heating only

FEATURES: Wall-hung condensing...

Wall-mounted / for domestic use / with water heater

FEATURES: Wall-hung condensing...

Floor-mounted / commercial / condensing

NeoTherm is a direct vent, sealed combustion,...

Floor-mounted / commercial / condensing

The NeoTherm LC is a direct vent, sealed combustion,...

Floor-mounted / commercial / condensing

Fully-modulating, fully condensing,...

Wall-mounted / commercial

The Mighty Therm series boilers...

Wall-mounted / for domestic use

KD Navien provides condensate wall-hanging gas boiler appropriate for environment...

Wall-mounted / for domestic use / condensing

High efficiency and low pollutant emissions by brilliant condensing technology SEDBUK A rated condensing...

Wall-mounted / for domestic use / low-pressure

KD Navien provides condensate wall-hanging gas boiler appropriate...

Free-standing / for domestic use / low-pressure

High energy efficiency Stainless steel DHW coils...

Wall-mounted / for domestic use / condensing

Combination and System boilers Looking for a modern gas fired condensing boiler with a particularly...

Wall-mounted / for domestic use / condensing

Compact enough to fit in a standard kitchen cupboard Compact dimensions With a depth of only 285...

Wall-mounted / for domestic use / condensing

Combination boiler The gas fired condensing boilers Vitodens 100-W P25 and P29 offer high heating and...

Wall-mounted / for domestic use / condensing

Combination and System boilers Automatic combustion control A...

Floor-mounted / for domestic use

Variable Speed Gas-Fired Furnaces Up to 80% AFUE 58CVA/58CVX...

Floor-mounted / commercial

2-Stage Gas-Fired Furnaces Up to 80% AFUE 58CTA/58CTX Gas-Fired Furnaces The 58CTA/58CTX...

Floor-mounted / for domestic use / condensing

Gas-Fired Condensing Furnaces Up to 95% AFUE 58MXB Gas Furnaces Four-way...

Floor-mounted / for domestic use / condensing

The 58DLA/58DLX 4-way multipoise gas furnaces offer deluxe features...

Floor-mounted / for domestic use

Backed by the intelligent Infinity...

Wall-mounted / for domestic use / condensing

The new CGB-2 wall mounted gas condensing boilers are...

Solar boiler / gas / floor-mounted / for domestic use

The CSZ‑2R gas condensing solar centre was also developed and equipped...

Floor-mounted / for domestic use / condensing

The CGS-2L gas condensing centre is the larger version of the CGB-2...

Wall-mounted / for domestic use / condensing

The CGW‑2L wall mounted gas condensing...

Wall-mounted / for domestic use / condensing

Wall Hung High Efficiency Gas Combination Boiler 2 year guarantee (extendable to 5...

Wall-mounted / for domestic use / condensing

2 year guarantee (extendable to 5 years with purchase of 3318461) Low NOx,...

Wall-mounted / for domestic use / condensing

5 year guarantee Low NOx, Class 5 Stainless steel heat exchanger Familiar...

Wall-mounted / for domestic use

5 year guarantee Low NOx,...

Floor-mounted / for domestic use / condensing

The comfort of efficiency This compact; attractive...

Solar boiler / gas / floor-mounted / for domestic use

These boiler models from the Modulens O range are...

Fuel oil boiler / multi-fuel / gas / floor-mounted

Perfection in all forms The GT 120 boiler...

Fuel oil boiler / multi-fuel / gas / floor-mounted

The GTU 1200 can be used either for heating...

Wall-mounted / for domestic use / condensing

The Weishaupt Thermo Condens Compact condensing boiler comes with an integrated DHW...

Floor-mounted / for domestic use / low-temperature

Weishaupt gas-fired condensing boilers use almost all of the energy stored in the...

Floor-mounted / commercial / industrial

The UltraGas® condensing boiler...

Wall-mounted / commercial / condensing

TopGas wall-mounted boilers...

Fuel oil boiler / gas / floor-mounted / commercial

The Uno-3 boiler has a three pass design and thermolytic...

Fuel oil boiler / gas / floor-mounted / commercial

The Max-3 boiler has a three pass design...

Free-standing / commercial

The A.O. Smith Upsilon series consists of 3 boilers: UB 70, UB...

Floor-mounted / commercial / condensing

The GB312 is available in the following kW outputs: 90kW 120kW...

Floor-mounted / commercial / condensing

The GB402 is available in the following kW outputs: 320kW 395kW...

Floor-mounted / commercial / condensing

The SB325 is available in the following...

Floor-mounted / commercial / condensing

The SB625 is available in the following...

Floor-mounted / for domestic use

Two-Stage, Heating: Operates like two furnaces in one...

Floor-mounted / for domestic use

Two-Stage, Variable-Speed Heating: Provides more...

Floor-mounted / for domestic use

Quiet with Low Vibration: 24-inch swept wing fan blade combined with...

Floor-mounted / for domestic use

Two-Stage, Variable-Speed Heating: Provides more...

How to choose this product

gas-boiler

A gas boiler uses natural gas, propane (LPG) or butane to fire a hot-water heating system. Some also provide hot tap water.

Technologies

Standard boilers heat water to 90° C, while low-temperature models heat to only 40° C. Commercial installations feature high-temperature boilers for steam heating. Condensing boilers are very efficient, offering energy savings to 30%. They use condensed steam recovered from flue gases to heat the cold water on the return side of the system.

How to choose

Choice will depend on boiler capacity and installation configuration (wall, floor, built-in). City gas is the preferred fuel option, offering ease of installation, low cost and efficacy. Propane (LPG) requires tank storage and is more expensive. Low-temperature and condensing models are more economical and environmentally friendly.

Advantages

- Energy savings
- Easy maintenance

Disadvantages

- Uses non-renewable energy
- Produces CO2 emissions

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