Gas boilers

53 companies | 432 products
Wall-mounted / condensing

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

Floor-mounted / condensing

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

Floor-mounted / condensing

PRESTIGE Condensation 45 kilowatts is also equipped with...

Wall-mounted / for heating only / condensing

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 heating only / condensing

FEATURES: Wall-hung condensing boilers with...

Wall-mounted / for heating only / condensing

FEATURES: Wall-hung condensing...

Wall-mounted / with water heater / for heating only

FEATURES: Wall-hung condensing...

Floor-mounted / home / condensing

The comfort of efficiency This compact; attractive...

Solar boiler / gas / floor-mounted / home

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 / indoor

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

Wall-mounted / condensing / outdoor

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

Wall-mounted / low-pressure / condensing

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

Free-standing / low-pressure / indoor

High energy efficiency Stainless steel DHW coils...

Wall-mounted

The Baxi Duo-tec Combi HE A boiler combines our passion for technology...

Wall-mounted / home

We have built on the features that made the original, award-winning Baxi Duo-tec...

Wall-mounted

The Baxi Neta-tec Combi GA comes with the THINK combustion management system as standard. With Gas Adaptive...

Wall-mounted

Reduce your heating bills and your impact on the environment: The highly advanced...

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

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

Floor-mounted / for professional use

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

Floor-mounted / condensing

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

Floor-mounted / condensing

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

Floor-mounted

Dependable...

Floor-mounted

Dependable...

Floor-mounted

Dependable...

Floor-mounted

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 / condensing / indoor

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

Wall-mounted / condensing

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

Wall-mounted / condensing

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

Wall-mounted

5 year guarantee Low NOx,...

Wall-mounted / condensing

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

Floor-mounted / low-temperature / condensing

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

Floor-mounted / commercial / industrial

The UltraGas® condensing boiler...

Wall-mounted / 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 / indoor

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

Floor-mounted / condensing / indoor

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

Floor-mounted / condensing

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

Floor-mounted / condensing / indoor

The SB325 is available in the following...

Floor-mounted / condensing / indoor

The SB625 is available in the following...

Wall-mounted / home / condensing

Very high efficiency wall hung condensing boiler Dual...

Wall-mounted / home / condensing

High efficiency domestic wall hung gas condensing boiler. Stainless...

Multi-fuel boiler / fuel-oil / gas / floor-mounted

Accumulation type dual application hot water producer. 120 L corrugated...

Multi-fuel boiler / fuel-oil / gas / floor-mounted

Accumulation type dual application hot water producer. 120 L corrugated...

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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