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Gas Systems Boilers, Gas Condensing Systems Boilers



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Halstead Eden X-Type SBX30 Condensing System Gas Boiler (including Standard Horizontal Flue)

Delivery: 5 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerNatural Gas Fuel BoilerThis Product is In StockThis Product is RecommendedThis Product Comes With a Free Flue
Ref: ENSBX30

RRP: £912.00
Our Price: £524.40
Saving: £387.60


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Biasi Riva Plus 24 System Gas Boiler (including Standard Horizontal Flue)

Delivery: 5 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerNatural Gas Fuel BoilerThis Product is In StockThis Product is RecommendedThis Product Comes With a Free Flue
Ref: BSRIVAP24S

RRP: £894.34
Our Price: £570.00
Saving: £324.34


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Biasi ActivA 18S System Gas Boiler

Delivery: 5 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerNatural Gas Fuel BoilerThis Product is In StockThis Product is Recommended
Ref: BSACT18S

RRP: £1062.24
Our Price: £604.80
Saving: £457.44


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Biasi Riva Plus 28 System Gas Boiler (including Standard Horizontal Flue)

Delivery: 5 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerNatural Gas Fuel BoilerThis Product is In StockThis Product is RecommendedThis Product Comes With a Free Flue
Ref: BSRIVAP28S

RRP: £948.68
Our Price: £606.00
Saving: £342.68


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Ariston E-SYSTEM 24 FF Condensing System Gas Boiler 21.0kW - 71,600 Btu/h

Delivery: 5 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerLPG or Natural Gas Fuel BoilerThis Product is In StockThis Product is Recommended
Ref: ARIS3300353

RRP: £1164.00
Our Price: £618.54
Saving: £545.46


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Biasi ActivA 25S System Gas Boiler

Delivery: 5 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerNatural Gas Fuel BoilerThis Product is In StockThis Product is Recommended
Ref: BSACT25S

RRP: £1103.28
Our Price: £628.80
Saving: £474.48


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Ariston E-SYSTEM 30 FF Condensing System Gas Boiler 27.0kW - 92,100 Btu/h

Delivery: 5 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerLPG or Natural Gas Fuel BoilerThis Product is In StockThis Product is Recommended
Ref: ARIS3300354

RRP: £1278.00
Our Price: £673.84
Saving: £604.16


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Glowworm 18Sx Flexicom Condensing Systems Gas Boiler

Delivery: 4 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerNatural Gas BoilerThis Product is In Stock
Ref: 108058

RRP: £1129.50
Our Price: £674.69
Saving: £454.81


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Ariston CLAS HE 18 FF Condensing System Gas Boiler (NG or LPG)

Delivery: 7 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerLPG or Natural Gas Fuel BoilerThis Product is In StockThis Product is Recommended
Ref: ARIS3665073

RRP: £1422.00
Our Price: £696.12
Saving: £725.88


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Biasi ActivA 30S System Gas Boiler

Delivery: 5 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerNatural Gas Fuel BoilerThis Product is In StockThis Product is Recommended
Ref: BSACT30S

RRP: £1130.16
Our Price: £700.80
Saving: £429.36


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Baxi Megaflo 15 HE Condensing Gas System Boiler

Delivery: 5 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerNatural Gas BoilerThis Product is In Stock
Ref: 118652

RRP: £1332.00
Our Price: £721.43
Saving: £610.57


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Ariston CLAS HE 24 FF Condensing System Gas Boiler (NG or LPG)

Delivery: 7 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerLPG or Natural Gas Fuel BoilerThis Product is In StockThis Product is Recommended
Ref: ARIS3665070

RRP: £1512.00
Our Price: £737.52
Saving: £774.48


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Ideal Logic 15kW Condensing Systems Gas Boiler

Delivery: 5 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerNatural Gas BoilerThis Product is In Stock
Ref: 123570

RRP: £979.62
Our Price: £740.72
Saving: £238.90


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Baxi Megaflo 18 HE Condensing Gas System Boiler

Delivery: 5 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerNatural Gas BoilerThis Product is In Stock
Ref: 118653

RRP: £1380.00
Our Price: £745.42
Saving: £634.58


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Vaillant ecoTEC Plus 612 Condensing Systems Gas Boiler

Delivery: 4 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerNatural Gas BoilerThis Product is In Stock
Ref: 127090

RRP: £1290.00
Our Price: £748.45
Saving: £541.55


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Alpha INTEC 12 S Condensing System Gas Boiler

Delivery: 7 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerNatural Gas BoilerThis Product is In Stock
Ref: 195414

RRP: £1241.95
Our Price: £752.70
Saving: £489.25


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Worcester Greenstar 12i Condensing Systems Gas Boiler

Delivery: 4 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerNatural Gas BoilerThis Product is In Stock
Ref: 100290

RRP: £1272.00
Our Price: £754.85
Saving: £517.15


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Alpha CD12S Condensing System Gas Boiler

Delivery: 7 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerNatural Gas BoilerThis Product is In Stock
Ref: 196090

RRP: £1257.14
Our Price: £761.90
Saving: £495.24


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Glowworm 30Sx Flexicom Condensing Systems Gas Boiler

Delivery: 5 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerNatural Gas BoilerThis Product is In Stock
Ref: 108057

RRP: £1355.00
Our Price: £763.25
Saving: £591.75


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Ariston CLAS HE 30 FF Condensing System Gas Boiler (NG or LPG)

Delivery: 7 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerLPG or Natural Gas Fuel BoilerThis Product is In StockThis Product is Recommended
Ref: ARIS3665071

RRP: £1590.00
Our Price: £768.62
Saving: £821.38


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Ideal Logic 18kW Condensing Systems Gas Boiler

Delivery: 5 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerNatural Gas BoilerThis Product is In Stock
Ref: 123571

RRP: £1023.72
Our Price: £773.80
Saving: £249.92


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Glow-worm Ultracom2 18 SXI Condensing System Gas Boiler (NG or LPG)

Delivery: 3 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerNatural Gas Fuel BoilerThis Product is In Stock
Ref: 109255

RRP: £931.22
Our Price: £776.02
Saving: £155.20


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Vaillant ecoTEC Plus 615 Condensing Systems Gas Boiler

Delivery: 4 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerNatural Gas BoilerThis Product is In Stock
Ref: 127091

RRP: £1356.00
Our Price: £785.95
Saving: £570.05


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Vokera Mynute 12HE Condensing Systems Gas Boiler

Delivery: 4 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerNatural Gas BoilerThis Product is In Stock
Ref: 126690

RRP: £1249.50
Our Price: £789.19
Saving: £460.31


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Worcester Greenstar 15i Condensing System Gas Boiler

Delivery: 4 Working Days (Approx)

Manufacturer GuaranteeSedbuk A Rated BoilerNatural Gas BoilerThis Product is In Stock
Ref: 100335

RRP: £1228.32
Our Price: £791.69
Saving: £436.63


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Why Choose a Gas Systems Boiler

A gas systems boiler is for use within a large property with multiple bathrooms, due to the need for greater Water demand. The gas systems boiler comes with everything already built into the boiler to create a Sealed System. This includes a Pump, Expansion Valve, Pressure Relief Valve and Pressure Gauge. with the systems boiler already having these components inside the boiler this saves time and space for the plumber and Householder respectively. A gas systems boiler would normally be fitted for use with a Stainless Steel Unvented Cylinder which negates the need for a Cold Water storage tank in the loft due to the cylinder being fed by the Cold Mains water Pipe.

An Indirect Cylinder (Stainless Steel) used in line with a gas systems boiler can produce recovery times of only 15 minutes with a 70L cylinder and only 27 minutes on a 300L cylinder after a 70% draw off which is considerably less than a normal Open Vented Copper Cylinder.

The Benefits of a Gas Systems Boiler

The other benefits of a gas systems boiler installation is that you can achieve a higher Water Pressure to be able to cope with the multiple Draw offs, which allows the water to be pumped around the Primary Hot Water circuit and the Central Heating circuit at higher Flow Rates which is more economical than the traditional Open Vented system.

Are Gas System Boilers classed a High Efficiency Boilers?

Yes. All the systems Boilers that heatandplumb.com have available for sale are condensing systems boilers. The high efficiency of these boilers is achieved by recycling and abstracting the heat from the exhaust gases where, in non-condensing boilers, the heat present in the exhaust gases is wasted to the atmosphere.

The Different makes of Gas Systems Boilers

Most boiler manufacturers produce system boilers, and heatandplumb.com can supply the following gas systems boilers:
  • Heatline System Boilers
  • Glowworm System Boilers
  • Vaillant System Boilers
  • Worcester System Boilers
  • Vokera System Boilers
  • Baxi System Boilers
  • Ideal System Boilers
  • Potterton System Boilers
  • Keston System Boilers
  • Ariston System Boilers
  • Ferroli System Boilers
Systems Boiler Prices and specifications change alot depending on the manufacturer you choose, so investigate the range we have to offer below and if you have any questions don't forget to give our sales team a call on 01208 812587 to answer your questions.





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