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gas boiler / wood / fuel oil / multi-fuel
gas boiler
TURBO G3 2S

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UNICAL AG S.p.A.
gas boiler / residential / low-temperature
gas boiler
!DEA

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UNICAL AG S.p.A.
gas boiler / wall-mounted / residential / condensing
gas boiler
ALKON

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UNICAL AG S.p.A.
gas boiler / wall-mounted / residential / condensing
gas boiler
UNIKE

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UNICAL AG S.p.A.
gas boiler / wall-mounted / residential / condensing
gas boiler
UNIK B

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UNICAL AG S.p.A.
gas boiler / wall-mounted / residential / condensing
gas boiler
FUTURA: 26 - 35

Futura 26 and Futura 35 are condensing wall boilers for heating and instantaneous production of sanitary hot water Tekno Point. Futura boilers 26 and 35 guarantee maximum efficiency both in heating and ...

gas boiler / industrial / condensing / outdoor
gas boiler
FUTURA SISTEMA

... accessories: Header for water, gas, fumes and condensation Header for distribution / separation hydraulic integrated in the boiler Integrated circulator primary and secondary circuit VERSIONS AVAILABLE Futura ...

gas boiler / wall-mounted / commercial
gas boiler
UPSILON

... Upsilon series consists of 3 boilers: UB 70, UB 110 and UB 140. All the boilers in the Upsilon series are fitted with an electronic control which optimises the performance by infinitely modulating. These ...

gas boiler / wall-mounted / residential / commercial
gas boiler
EPSILON

The Epsilon is a series of 2 boilers: the EB 40 and the EB 50. These are the smallest units in the A.O. Smith heating product-line. The Epsilon is a high efficiency condensing boiler with low carbon emission ...

gas boiler / electric / residential / condensing
gas boiler
NEA 70 - 115 -140

... introduce you the condensation boiler NEA (both basement and wall type) for indoor and outdoor installation. The indoor/outdoor condensation boiler NEA with basement is available in 3 models: NEA 70/115/140. ...

gas boiler / electric / wall-mounted / residential
gas boiler
NEA 70 - 85 -100

Indoor/outdoor NEA condensation boiler (wall type) is available in 5 models: NEA 30/50/70/85/100. The wall boiler NEA is suitable also for high temperatures, both for single use and for battery functioning. ...

gas boiler / wall-mounted / residential / outdoor
gas boiler
NEA 30-50

Indoor/outdoor NEA condensation boiler (wall type) is available in 5 models: NEA 30/50/70/85/100. The wall boiler NEA is suitable also for high temperatures, both for single use and for battery functioning. ...

gas boiler / wall-mounted / residential / outdoor
gas boiler
NEA 25-30

... condensation boiler for indoor installation is available in 2 models: 25 and 30 kW. In an unique product it is possible to find the efficiency of condensation heating, high performances and full set of accessories. If ...

gas boiler / residential
gas boiler
GWB8-IE

Made tough, to deliver reliable warmth The GWB8-IE includes extra attention to durability, with features like a cast-iron heat exchanger and corrosion-resistant titanium burners. Thick fiberglass insulation adds to energy efficiency, ...

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Lennox
gas boiler / residential
gas boiler
GWB8-E

... The GWB8-E offers an efficiency of up to 83.9% AFUE, meaning it can deliver significant energy savings compared to an older boiler. That means you can enjoy a comfortably warm home all throughout the winter, without worrying ...

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Lennox
gas boiler / commercial / residential
gas boiler
EL296V/EL296E

Power: 44000 BTU/h - 132000 BTU/h

44,000-132,000 Btuh 33" design profile 2-stage gas heating for improved comfort control Upflow/horizontal and dedicated downflow models configurations Power-saving constant-torque motor (EL296E only) Expanded venting ...

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Lennox
gas boiler / residential / condensing
gas boiler
GWM-IE

Smart design, smarter comfort Inside the heat exchanger shell of the GWM-IE, specially designed helical tubes optimize condensing, allowing near-complete recovery of useable heat from the fuel source.

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Lennox
gas boiler / residential
gas boiler
GWB9-IH

... inspected prior to shipping to ensure the highest possible degree of operating reliability. So you can take comfort knowing the boiler will deliver dependable performance, season after season.

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Lennox
gas boiler / residential / commercial / condensing
gas boiler
VICTRIX 12 X TT 2 ERP

Power: 12000 W

Wall-hung, condensing, heating only. 12 kW heat output. With VICTRIX 12 X TT 2 ErP - the boiler that symbolizes Immergas 50° anniversary – starts a new generation of boilers for new installations and ...

gas boiler / residential / commercial / condensing
gas boiler
VICTRIX 20 X TT 2 ERP

Power: 12000 W

Wall-hung, condensing, heating only. 20,5 kW heat output. With VICTRIX 20 X TT 2 ErP - the boiler that symbolizes Immergas 50° anniversary – starts a new generation of boilers for new installations and ...

gas boiler / wall-mounted / commercial / condensing
gas boiler
VICTRIX 24 TT 1 E

Power: 20500, 24000 W

... heat output: 23,3 kW DHW and 20,5 kW central heating. With VICTRIX 24 TT 1 E – the boiler that symbolizes Immergas 50° anniversary – starts a new generation of boilers for new installations and especially ...

gas boiler / wall-mounted / residential / condensing
gas boiler
VICTRIX 24 TT 2 ERP

Power: 20500 W

... heat output: 23,3 kW DHW and 20,5 kW central heating. With VICTRIX 24 TT 2 ErP – the boiler that symbolizes Immergas 50° anniversary – starts a new generation of boilers for new installations and especially ...

gas boiler / wall-mounted / residential / condensing
gas boiler
VICTRIX MAIOR 28 TT 1 ERP

Power: 34200 W

Wall-hung combi condensing boiler. Nominal Heat output: 34,2 kW (both in central heating and DHW production mode). With VICTRIX MAIOR TT 1 a new generation of boilers, created for new installations and ...

gas boiler / wall-mounted / residential / condensing
gas boiler
MC5

Power: 24000 W

Reduction of shutdown losses More environmentally friendly Increased boiler life Up to 10% gain compared to a traditional condensing boiler

gas boiler / wall-mounted / residential / condensing
gas boiler
MC4

Power: 24000 W

gas boiler / wall-mounted / residential / low-temperature
gas boiler
ME1 VMC

Power: 24000 W

gas boiler / wall-mounted / residential / low-temperature
gas boiler
ME1 CF

Power: 24000 W

gas boiler / wall-mounted / residential / condensing
gas boiler
CBC1

Power: 28000 W

gas boiler / wall-mounted / residential / condensing
gas boiler
ECOTEC PLUS 415

Wide modulation range of up to 1:6 Highly efficient and economical to run Push fit flue system ErP rated A Push button programming

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VAILLANT
gas boiler / wall-mounted / residential / condensing
gas boiler
ECOTEC PRO 24

Extended guarantees available when installed by a Vaillant Advance partner LPG models available for off gas areas Wide range of compatible Vaillant controls for a total system solution ErP rated A Compact dimensions ...

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VAILLANT
gas boiler / wall-mounted / residential / condensing
gas boiler
ECOTEC PLUS 824

... enables low stand by losses (less than 2W). Dedicated models available for LPG for off gas areas. Stylish contoured case design with drop down flap making this a boiler which fits with the decor of any home.

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VAILLANT
gas boiler / wall-mounted / residential / condensing
gas boiler
ECOTEC EXCLUSIVE 832

Which? Best Buy awarded Step by Step full text installation wizard Dedicated models available for LPG Extended guarantees when installed by a Vaillant Advance partner ErP rated A

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VAILLANT
gas boiler / wall-mounted / residential / condensing
gas boiler
ECOTEC PLUS 937

... storage combination boiler which has been designed especially for larger homes which have a higher hot water demand. Benefiting from the same high quality performance and efficiency levels youd expect from a Vaillant ...

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VAILLANT
gas boiler / residential / condensing
gas boiler
QUADRIFOGLIO B

... modular installation. As a standard on each boiler. Range rated certified boiler: adaption of boiler max eating output to real max load, thus keeping high operational efficiency Wide ...

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FERROLI
gas boiler / wall-mounted / residential / outdoor
gas boiler
DIVATECH D

WALL HUNG TRADITIONAL BOILER, FOR CENTRAL HEATING AND INSTANTANEOUS DOMESTIC HOT WATER PRODUCTION, THROUGH DOUBLE EXCHANGER Monothermic CH copper exchanger plus stainless steel plates DHW exchanger fed by 230 V ...

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FERROLI
gas boiler / wall-mounted / commercial / for heating only
gas boiler
ENERGY TOP

WALL-HUNG COMMERCIAL CONDENSING BOILER, HEATING ONLY, READY FOR CASCADE SYSTEMS - Aluminium boiler body with dual function of heat exchanger and condenser, with low pressure drop and high efficiency - ...

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FERROLI
gas boiler / fuel oil / multi-fuel / commercial
gas boiler
GN2 N

... central heating G20 cast-iron boiler body made from pre-assembled elements (6-14) with steel cone inserts and boiler studs, insulated by a layer of rock wool lined by special tear-proof ...

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FERROLI
gas boiler / fuel oil / multi-fuel / residential
gas boiler
GN4 N

FLOOR-STANDING CAST-IRON BOILERS, SUITABLE FOR INSTALLATION OF AN OIL OR GAS JET BURNER High efficiency heat generator on liquid or gas fuel, with three flue passes, cooled combustion ...

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FERROLI
gas boiler / wall-mounted / residential / condensing
gas boiler
EXCLUSIVE GREEN HE

■ EXCLUSIVE GREEN HE is Beretta top of the range condensing appliance and one of the most energy efficient boilers available on the market. ■ Low Energy, A-Class, synchronous pump (EEI ≤ 0.23), PWM controlled (6 metres) ...

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Beretta
gas boiler / wall-mounted / residential / condensing
gas boiler
CIAO GREEN

■ On ErP boilers: Low Energy, A-Class, synchronous pump EEI ≤ 0.20. ■ A cost-conscious condensing boiler with compact dimensions and low lift weight, enabling a flexible installation anywhere in the ...

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Beretta
gas boiler / wall-mounted / residential / condensing
gas boiler
EXCLUSIVE GREEN

... advanced boiler control to suit any installation • Direct management second heating circuit at different temperature • Expansion vessels: 10 lt on heating and 2 lt on DHW • IPX5D electrical protection. • Hydraulic ...

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Beretta
gas boiler / wall-mounted / residential / commercial
gas boiler
MYNUTE GREEN

... 25 B.S.I. E model; 60 lt. on 32 B.S.I. E model). ■ On ErP boilers: Low Energy, A-Class, synchronous pump EEI ≤ 0.20. ■ The RANGE RATED certification allows to adapt the power of the boiler to the real ...

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Beretta
gas boiler / wall-mounted / residential / commercial
gas boiler
MYNUTE GREEN 50

... power condensing boiler, that can be configurated in different ways, according to your needs. ■ On ErP boilers: Low Energy, A-Class, synchronous pump (EEI ≤ 0.23). ■ The RANGE RATED certification allows ...

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Beretta
gas boiler / residential / commercial / condensing
gas boiler
PUREFIRE®

The Peerless® PUREFIRE® gas-fired condensing boiler is a high-efficiency boiler for residential applications and is available for either natural or LP gas. The direct ...

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Peerless Boilers
gas boiler / residential / commercial
gas boiler
PUREFIRE® PFW™

The new Peerless® PureFire® PFW™ Series boiler is a large volume, hot water supply boiler with efficiencies over 93%! The boiler is available in two sizes (PFW-200, PFW-399) for both ...

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Peerless Boilers
gas boiler / residential / condensing
gas boiler
COMBI 160™

The Peerless® Combi (PC) 160™ gas-fired boiler is a 91.1% efficient condensing boiler that uses premixed burner technology for optimal combustion. The boiler offers hydronic ...

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Peerless Boilers
gas boiler / residential / condensing
gas boiler
CAST 92-2™

... Cast 92-2™ boiler is a gas-fired, cast iron condensing boiler that is 90% efficient and ENERGY STAR® approved. The boiler features direct spark ignition and can be used ...

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Peerless Boilers
gas boiler / residential
gas boiler
MI85™

The new Series MI85™ gas-fired boiler is ENERGY STAR® efficient with an 85% AFUE. The residential, cast iron boiler is designed for hot water, natural gas systems and ...

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Peerless Boilers
gas boiler / wall-mounted / residential / low-temperature
gas boiler
ACLÉIS

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ELM LEBLANC
gas boiler / wall-mounted / residential / low-temperature
gas boiler
MÉGALIS

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ELM LEBLANC
gas boiler / wall-mounted / residential / condensing
gas boiler
ODÉALIS

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ELM LEBLANC
gas boiler / wall-mounted / residential / for heating only
gas boiler
ÉGALIS

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ELM LEBLANC
gas boiler / residential / with solar water heater / condensing
gas boiler
STELLIS

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ELM LEBLANC
gas boiler / residential / condensing
gas boiler
AY

Heating and hot water production up to 80 °C. Ideal for integrating Robur gas absorption solutions. CONDENSING BOILER FOR OUTDOOR INSTALLATION Advantages Ideal complement for: - provide peak power ...

gas boiler / wall-mounted / residential / outdoor
gas boiler
CALDARIA 35

Advantages: Low running costs, thanks to 98% heating efficiency (with water delivery temperature of 80 °C). Low fuel consumption, thanks to 105% heating efficiency (with water delivery temperature of 50 °C). Low NOx value: 5th NOx ...

gas boiler / wall-mounted / residential / for heating only
gas boiler
CALDARIA 35 (SOLO CALDAIA)

Advantages: Low running costs, thanks to 98% heating efficiency (with water delivery temperature of 80 °C). Low fuel consumption, thanks to 105% heating efficiency (with water delivery temperature of 50 °C). Low NOx value: 5th NOx ...

gas boiler / wall-mounted / residential / condensing
gas boiler
CALDARIA 75

... is possible to achieve efficiencies up to 108.7%. Easy installation. Thanks to the external hanging installation of the boilers, installation is quite easy. No problem flue discharge. The additional important effect ...

gas boiler / wall-mounted / residential / with water heater
gas boiler
CALDARIA UNO SUPER PRO

Advantages: Quick and easy to install. Only a small 80 mm hole in the wall and the outdoor unit is already connected to the indoor one. The 2 units can be connected by 2 flexible pipes, equipped as accessories or by pipes chosen by ...

gas boiler / residential / condensing
gas boiler
VITOCROSSAL 100

Power: 80000, 320000, 640000 W

... changing gas qualities and therefore high efficiency and economy Excellent accessibility to all components for ease of service and maintenance Proven Vitotronic control unit with user prompts and plain text display Low ...

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VIESSMANN
gas boiler / commercial / condensing
gas boiler
VITOPLEX 200

Take advantage of these benefits Low temperature oil/gas boiler, rated from 440 to 1950 kW Sizes up to 350 kW fit through standard doorways with 80 cm openings Sizes from 700 kW with walk-on boiler ...

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VIESSMANN
gas boiler / residential
gas boiler
PERFORMANCE™ : 59SP5

Power: 26000 BTU/h - 120000 BTU/h

The multi-speed blower motor of this energy-efficient furnace can do more than just add to your comfort. Paired with the right cooling system, it can actually boost SEER levels to help you save on energy costs all year round. Comfort ...

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CARRIER
gas boiler / residential
gas boiler
INFINITY® 96 : 59TN6

Power: 60000 BTU/h - 120000 BTU/h

Backed by the intelligent Infinity control and a variable-speed blower, this furnace will run in low stage up to 90% of the time. Longer, low-stage run times give you better energy efficiency, better temperature control and increased ...

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CARRIER
gas boiler / residential
gas boiler
INFINITY® 96 59TN6

Power: 60000 BTU/h - 120000 BTU/h

Backed by the intelligent Infinity control and a variable-speed blower, this furnace will run in low stage up to 90% of the time. Longer, low-stage run times give you better energy efficiency, better temperature control and increased ...

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CARRIER commercial
gas boiler / residential
gas boiler
INFINITY® 80 58CVA

Power: 66000 BTU/h - 154000 BTU/h

Southern climates with short, mild winters may not call for the highest degree of efficiency. As part of an Infinity communicating system, you can pair this model with a high-efficiency heat pump or air conditioner. It's the best choice ...

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CARRIER commercial
gas boiler / wall-mounted / residential / condensing
gas boiler
GB 162

The compact dimensions and light weight wall mounted boilers in the GB162 range provide an innovative solution where space is limited. The GB162 is available in 65, 80 and 100kW outputs Features and benefits Condensing ...

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Buderus
gas boiler / commercial / condensing
gas boiler
GB312

Power: 90000 W - 280000 W

... 280kW 95.8% Quick and simple to install Individual boiler outputs from 90 - 280kW Cascade of two boilers up to 560kW Excellent price/performance ratio Modulating pre-mix gas ...

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Buderus
gas boiler / commercial
gas boiler
POWERMITE® : PMG

The Hatco Powermite® Gas Booster Water Heater provides 180°F (82°C) final rinse water for sanitizing needs and guarantees dependability. Operates on either natural or propane gas and features a burner ...

gas boiler / solar / residential / condensing
gas boiler
HELIOTWIN CONDENS

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Saunier Duval
gas boiler / residential / condensing / with water heater
gas boiler
DUOMAX CONDENS

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Saunier Duval
gas boiler / wood / fuel oil / multi-fuel
gas boiler
TERNA

Terna boiler are equipped with a double firebox where it is possible to burn wood on one side and gas or gasoil on the other, in order to guarantee the operation once the wood charge is over. It is possible ...

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