Boiler Systems

Archive for the ‘Sedbuk’ Category

Listing of current combi boilers for Worcester Bosch listed in declining SEDBUK rating order.

Worcester: Greenstar Highflow : 440
gas : combi : condensing : floor mounted
Power Rating: (29.2 – 29.2 kW)
SEDBUK efficiency 91.0%

Worcester: Greenstar R : 30 HE Combi
gas : combi : condensing : wall mounted
Power Rating: (29.5 – 29.5 kW)
SEDBUK efficiency 90.6%

Worcester: Greenstar R : 25 HE Combi
gas : combi : condensing : wall mounted
Power Rating: (27.5 – 27.5 kW)
SEDBUK efficiency 90.6%

Worcester: Greenstar R : 30HE Plus Combi
gas : combi : condensing : wall mounted
Power Rating: (29.5 – 29.5 kW)
SEDBUK efficiency 90.6%

Worcester: Greenstar CDi : 25 Cdi
gas : combi : condensing : wall mounted
Power Rating: (25 – 25 kW)
SEDBUK efficiency 90.3%

Worcester: Greenstar R : 35 HE Plus Combi
gas : combi : condensing : wall mounted
Power Rating: (35.5 – 35.5 kW)
SEDBUK efficiency 90.3%

Worcester: Greenstar CDi : 31 CDi
gas : combi : condensing : wall mounted
Power Rating: (30 – 30 kW)
SEDBUK efficiency 90.2%

Worcester: Greenstar CDi : 27 CDi
gas : combi : condensing : wall mounted
Power Rating: (26.2 – 26.2 kW)
SEDBUK efficiency 90.2%

Worcester: Greenstar : 37 CDi
gas : combi : condensing : wall mounted
Power Rating: (30 – 30 kW)
SEDBUK efficiency 90.2%

Worcester: Greenstar : 42 CDi
gas : combi : condensing : wall mounted
Power Rating: (30 – 30 kW)
SEDBUK efficiency 90.2%

Worcester: Greenstar CDi : 30 CDi
gas : combi : condensing : wall mounted
Power Rating: (30 – 30 kW)
SEDBUK efficiency 90.2%

Worcester: Greenstar CDi : 35 CDi
gas : combi : condensing : wall mounted
Power Rating: (30 – 30 kW)
SEDBUK efficiency 90.2%

Worcester: Greenstar Cdi : 40 Cdi
gas : combi : condensing : wall mounted
Power Rating: (30.0 – 30.0 kW)
SEDBUK efficiency 90.2%

Worcester: Greenstar : 28i junior
gas : combi : condensing : wall mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 90.1%

Worcester: Greenstar : 24i junior
gas : combi : condensing : wall mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 90.1%

Worcester: Greenstar : 25 Si
gas : combi : condensing : wall mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 90.1%

Worcester: Greenstar : 30 Si
gas : combi : condensing : wall mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 90.1%

Worcester: Greenstar R : 40 HE Plus Combi
gas : combi : condensing : wall mounted
Power Rating: (40.0 – 40.0 kW)
SEDBUK efficiency 90.0%

Worcester: 26 CDi Xtra : RSF – L
gas : combi : condensing : wall mounted
Power Rating: (26 – 26 kW)
SEDBUK efficiency 87.1%

Worcester: Highflow 400 Electronic BF : BF
gas : combi : non condensing : floor mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 80.0%

Worcester: 24 Cdi : BF
gas : combi : non condensing : wall mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 79.4%

Worcester: 28 Cdi : RSF
gas : combi : non condensing : wall mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 78.9%

Worcester: 28i Junior :
gas : combi : non condensing : wall mounted
Power Rating: (27.5 – 27.5 kW)
SEDBUK efficiency 78.9%

Worcester: 28 LE : RSF
gas : combi : non condensing : wall mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 78.9%

Worcester: Highflow 400 Electronic RSF : RSF
gas : combi : non condensing : floor mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 78.8%

Worcester: 35 CDi II : RSF
gas : combi : non condensing : wall mounted
Power Rating: (27.5 – 27.5 kW)
SEDBUK efficiency 78.5%

Worcester: Highflow 400 Electronic OF : OF
gas : combi : non condensing : floor mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 78.5%

Worcester: 28 SI II : RSF
gas : combi : non condensing : wall mounted
Power Rating: (8.1 – 8.1 kW)
SEDBUK efficiency 78.4%

Worcester: 24i – L : RSF
gas : combi : non condensing : wall mounted
Power Rating: (23.4 – 23.4 kW)
SEDBUK efficiency 78.3%

Worcester: 24 CDi : RSF-L
gas : combi : non condensing : wall mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 78.1%

Worcester: 24 SI II : RSF
gas : combi : non condensing : wall mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 78.1%

Worcester: 24 CDi – L : OF
gas : combi : non condensing : wall mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 78.1%

Worcester: 28i : RSF
gas : combi : non condensing : wall mounted
Power Rating: (28 – 28 kW)
SEDBUK efficiency 78.0%

Worcester: 24i Junior :
gas : combi : non condensing : wall mounted
Power Rating: (23.5 – 23.5 kW)
SEDBUK efficiency 78.0%

This information has been collated from Manufacturers literature and the SEDBUK online database as at April 2007.

Small variations in efficiency ratings are not significant. It can be assumed that a 3% difference in rating will give a 95% confidence that the higher rated boiler is more efficient than the lower.

Listing of current regular boilers for Baxi listed in declining SEDBUK rating order.

Baxi: Platinum : 15 HE
gas : regular : condensing : wall mounted
Power Rating: (15.24 – 15.24 kW)
SEDBUK efficiency 91.3%

Baxi: Solo : 15 HE
gas : regular : condensing : wall mounted
Power Rating: (15.24 – 15.24 kW)
SEDBUK efficiency 91.3%

Baxi: Solo : 30 HE
gas : regular : condensing : wall mounted
Power Rating: (30.18 – 30.18 kW)
SEDBUK efficiency 90.9%

Baxi: Solo : 24 HE
gas : regular : condensing : wall mounted
Power Rating: (22.0 – 22.0 kW)
SEDBUK efficiency 90.9%

Baxi: Solo : 12 HE
gas : regular : condensing : wall mounted
Power Rating: (11.82 – 11.82 kW)
SEDBUK efficiency 90.5%

Baxi: Solo : 18 HE
gas : regular : condensing : wall mounted
Power Rating: (17.81 – 17.81 kW)
SEDBUK efficiency 90.4%

Baxi: Megaflo System : 15 HE
gas : regular : condensing : wall mounted
Power Rating: (15 – 15 kW)
SEDBUK efficiency 90.2%

Baxi: Megaflo System : 18 HE
gas : regular : condensing : wall mounted
Power Rating: (18 – 18 kW)
SEDBUK efficiency 90.2%

Baxi: Megaflo System : 28 HE
gas : regular : condensing : wall mounted
Power Rating: (28.0 – 28.0 kW)
SEDBUK efficiency 90.2%

Baxi: Megaflo System : 24 HE
gas : regular : condensing : wall mounted
Power Rating: (24.0 – 24.0 kW)
SEDBUK efficiency 90.2%

Baxi: Megaflo System : 32 HE
gas : regular : condensing : wall mounted
Power Rating: (32 – 32 kW)
SEDBUK efficiency 90.1%

Baxi: Platinum System : 24 HE
gas : regular : condensing : wall mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 90.1%

Baxi: Solo 3 PFL : 30
gas : regular : non condensing : wall mounted
Power Rating:10.99 kW
SEDBUK efficiency 79.4%

Baxi: Solo 3 PFL : 80
gas : regular : non condensing : wall mounted
Power Rating:23.44 kW
SEDBUK efficiency 79.1%

Baxi: Solo 3 PFL : 60
gas : regular : non condensing : wall mounted
Power Rating: (22 – 22.0 kW)
SEDBUK efficiency 78.5%

Baxi: Solo 3 PFL : 40
gas : regular : non condensing : wall mounted
Power Rating: 14.65 kW
SEDBUK efficiency 78.4%

Baxi: Solo 3 PFL : 70
gas : regular : non condensing : wall mounted
Power Rating: 25.64 kW
SEDBUK efficiency 78.2%

Baxi: Bermuda : 50/6 Inset
gas : regular : non condensing : back boiler mounted
Power Rating: (14.65 – 14.65 kW)
SEDBUK efficiency 78.1%

Baxi: Bermuda : 51/5
gas : regular : non condensing : back boiler mounted
Power Rating: (15 – 15 kW)
SEDBUK efficiency 78.0%

This information has been collated from Manufacturers literature and the SEDBUK online database as at April 2007.

Small variations in efficiency ratings are not significant. It can be assumed that a 3% difference in rating will give a 95% confidence that the higher rated boiler is more efficient than the lower.

Listing of current regular boilers for Potterton listed in declining SEDBUK rating order.

Potterton: Promax SL : 15
gas : regular : condensing : wall mounted
Power Rating: (15.24 – 15.24 kW)
SEDBUK efficiency 91.3%

Potterton: Promax : 15/2 HE Plus
gas : regular : condensing : wall mounted
Power Rating: (15.24 – 15.24 kW)
SEDBUK efficiency 91.3%

Potterton: Promax SL : 24
gas : regular : condensing : wall mounted
Power Rating: (22.00 – 22.00 kW)
SEDBUK efficiency 90.9%

Potterton: Promax SL : 30
gas : regular : condensing : wall mounted
Power Rating: (30.18 – 30.18 kW)
SEDBUK efficiency 90.9%

Potterton: Promax FSB : 30 HE
gas : regular : condensing : floor mounted
Power Rating: (30.18 – 30.18 kW)
SEDBUK efficiency 90.9%

Potterton: Promax : 30 HE Plus
gas : regular : condensing : wall mounted
Power Rating: (30.18 – 30.18 kW)
SEDBUK efficiency 90.9%

Potterton: Promax : 24/2 HE Plus
gas : regular : condensing : wall mounted
Power Rating: (22.0 – 22.0 kW)
SEDBUK efficiency 90.9%

Potterton: Promax SL : 12
gas : regular : condensing : wall mounted
Power Rating: (11.82 – 11.82 kW)
SEDBUK efficiency 90.5%

Potterton: Promax : 12 HE Plus
gas : regular : condensing : wall mounted
Power Rating: (11.82 – 11.82 kW)
SEDBUK efficiency 90.5%

Potterton: Promax SL : 18
gas : regular : condensing : wall mounted
Power Rating: (17.81 – 17.81 kW)
SEDBUK efficiency 90.4%

Potterton: Promax : 18 HE Plus
gas : regular : condensing : wall mounted
Power Rating: (17.81 – 17.81 kW)
SEDBUK efficiency 90.4%

Potterton: Promax System : 12 HE Plus
gas : regular : condensing : wall mounted
Power Rating: (12 – 12 kW)
SEDBUK efficiency 90.2%

Potterton: Promax System : 15 HE Plus
gas : regular : condensing : wall mounted
Power Rating: (15 – 15 kW)
SEDBUK efficiency 90.2%

Potterton: Promax System : 18 HE Plus
gas : regular : condensing : wall mounted
Power Rating: (18 – 18 kW)
SEDBUK efficiency 90.2%

Potterton: Promax System : 32 HE Plus
gas : regular : condensing : wall mounted
Power Rating: (32 – 32 kW)
SEDBUK efficiency 90.1%

Potterton: Promax System : 24 HE Plus
gas : regular : condensing : wall mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 90.1%

Potterton: Performa System : 24 HE
gas : regular : condensing : wall mounted
Power Rating: (24.0 – 24.0 kW)
SEDBUK efficiency 87.4%

Potterton: Performa System : 18 HE
gas : regular : condensing : wall mounted
Power Rating: (18.0 – 18.0 kW)
SEDBUK efficiency 87.4%

Potterton: Performa System : 28 HE
gas : regular : condensing : wall mounted
Power Rating: (28.0 – 28.0 kW)
SEDBUK efficiency 87.3%

Potterton: Performa System : 12 HE
gas : regular : condensing : wall mounted
Power Rating: (12.0 – 12.0 kW)
SEDBUK efficiency 86.8%

Potterton: Suprima : 40 HE
gas : regular : condensing : wall mounted
Power Rating:11.78 kW
SEDBUK efficiency 86.4%

Potterton: Suprima : 60 HE
gas : regular : condensing : wall mounted
Power Rating:17.72 kW
SEDBUK efficiency 86.2%

Potterton: Suprima : 70 HE
gas : regular : condensing : wall mounted
Power Rating:20.68 kW
SEDBUK efficiency 86.2%

Potterton: Suprima : 80 HE
gas : regular : condensing : wall mounted
Power Rating:23.63 kW
SEDBUK efficiency 86.2%

Potterton: Suprima : 50 HE
gas : regular : condensing : wall mounted
Power Rating:14.76 kW
SEDBUK efficiency 86.2%

Potterton: Suprima : 30 HE
gas : regular : condensing : wall mounted
Power Rating:8.82 kW
SEDBUK efficiency 86.1%

Potterton: Suprima : 80L
gas : regular : non condensing : wall mounted
Power Rating:23.4 kW
SEDBUK efficiency 78.8%

Potterton: Kingfisher MF : RSL50
gas : regular : non condensing : floor mounted
Power Rating: 14.65 kW
SEDBUK efficiency 78.5%

Potterton: Kingfisher MF : CFL50
gas : regular : non condensing : floor mounted
Power Rating: 14.65 kW
SEDBUK efficiency 78.5%

Potterton: Kingfisher MF : CFL80
gas : regular : non condensing : floor mounted
Power Rating: 23.45 kW
SEDBUK efficiency 78.3%

Potterton: Performa System : 28e
gas : regular : non condensing : wall mounted
Power Rating: (29.4 – 29.4 kW)
SEDBUK efficiency 78.2%

Potterton: Kingfisher MF : RSL80
gas : regular : non condensing : floor mounted
Power Rating: 23.45 kW
SEDBUK efficiency 78.2%

Potterton: Suprima : 50L
gas : regular : non condensing : wall mounted
Power Rating: 14.7 kW
SEDBUK efficiency 78.1%

Potterton: Suprima : 60L
gas : regular : non condensing : wall mounted
Power Rating: 17.6 kW
SEDBUK efficiency 78.1%

This information has been collated from Manufacturers literature and the SEDBUK online database as at April 2007.

Small variations in efficiency ratings are not significant. It can be assumed that a 3% difference in rating will give a 95% confidence that the higher rated boiler is more efficient than the lower.

Listing of current combi boilers for Potterton listed in declining SEDBUK rating order.

Potterton: Powermax HE : 150 CP
gas : combi : condensing : floor mounted
Power Rating: (24.0 – 24.0 kW)
SEDBUK efficiency 90.6%

Potterton: Powermax HE : 150 CPIH
gas : combi : condensing : floor mounted
Power Rating: (24.0 – 24.0 kW)
SEDBUK efficiency 90.6%

Potterton: Powermax HE : 115 CPIH
gas : combi : condensing : floor mounted
Power Rating: (24.0 – 24.0 kW)
SEDBUK efficiency 90.5%

Potterton: Powermax HE : 85 CPIH
gas : combi : condensing : floor mounted
Power Rating: (24.0 – 24.0 kW)
SEDBUK efficiency 90.5%

Potterton: Powermax HE : 115 CP
gas : combi : condensing : floor mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 90.5%

Potterton: Powermax HE : 85 CP
gas : combi : condensing : floor mounted
Power Rating: (24.0 – 24.0 kW)
SEDBUK efficiency 90.5%

Potterton: Promax HE Store : 150 Litre
gas : combi : condensing : floor mounted
Power Rating: (24.0 – 24.0 kW)
SEDBUK efficiency 90.4%

Potterton: Promax HE Store : 115 Litre
gas : combi : condensing : floor mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 90.3%

Potterton: Promax HE Store : 90 Litre
gas : combi : condensing : floor mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 90.3%

Potterton: Gold : 28 HE
gas : combi : condensing : wall mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 90.1%

Potterton: Promax Combi : 33 HE Plus
gas : combi : condensing : wall mounted
Power Rating: (28 – 28 kW)
SEDBUK efficiency 90.1%

Potterton: Gold : 33 HE
gas : combi : condensing : wall mounted
Power Rating: (28 – 28 kW)
SEDBUK efficiency 90.1%

Potterton: Promax Combi : 28 HE Plus
gas : combi : condensing : wall mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 90.1%

Potterton: Gold : 24 HE
gas : combi : condensing : wall mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 90.1%

Potterton: Promax Combi : 24 HE Plus
gas : combi : condensing : wall mounted
Power Rating: (20 – 20 kW)
SEDBUK efficiency 90.1%

Potterton: Performa : 30 HE
gas : combi : condensing : wall mounted
Power Rating: (29.6 – 29.6 kW)
SEDBUK efficiency 87.3%

Potterton: Performa : 24i HE
gas : combi : condensing : wall mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 87.3%

Potterton: Performa : 24 Eco HE
gas : combi : condensing : wall mounted
Power Rating: (24 – 24 kW)
SEDBUK efficiency 87.3%

Potterton: Performa : 28
gas : combi : non condensing : wall mounted
Power Rating: (29.4 – 29.4 kW)
SEDBUK efficiency 78.1%

This information has been collated from Manufacturers literature and the SEDBUK online database as at April 2007.

Small variations in efficiency ratings are not significant. It can be assumed that a 3% difference in rating will give a 95% confidence that the higher rated boiler is more efficient than the lower.

Listing of current combi boilers for Baxi listed in declining SEDBUK rating order.

Baxi: Combi : 133 HE Plus
gas : combi : condensing : wall mounted
Power Rating: (30.1 – 30.1 kW)Â
SEDBUK efficiency 90.7%Â

Baxi: Platinum : 33 HE
gas : combi : condensing : wall mounted
Power Rating: (28 – 28 kW)Â
SEDBUK efficiency 90.1%Â

Baxi: Platinum Combi : 24 HE
gas : combi : condensing : wall mounted
Power Rating: (24 – 24 kW)Â
SEDBUK efficiency 90.1%Â

Baxi: Platinum Combi : 28 HE
gas : combi : condensing : wall mounted
Power Rating: (24 – 24 kW)Â
SEDBUK efficiency 90.1%Â

Baxi: Platinum : 24 HE
gas : combi : condensing : wall mounted
Power Rating: (24 – 24 kW)Â
SEDBUK efficiency 90.1%Â

Baxi: Platinum : 28 HE
gas : combi : condensing : wall mounted
Power Rating: (24 – 24 kW)Â
SEDBUK efficiency 90.1%Â

Baxi: Duo-tec Combi : 33 HE
gas : combi : condensing : wall mounted
Power Rating: (28.0 – 28.0 kW)Â
SEDBUK efficiency 90.1%Â

Baxi: Duo-tec Combi : 28 HE
gas : combi : condensing : wall mounted
Power Rating: (24.0 – 24.0 kW)Â
SEDBUK efficiency 90.1%Â

Baxi: Duo-tec Combi : 24 HE
gas : combi : condensing : wall mounted
Power Rating: (24.0 – 24.0 kW)Â
SEDBUK efficiency 90.1%Â

Baxi: Platinum Combi : 33 HE
gas : combi : condensing : wall mounted
Power Rating: (28 – 28 kW)Â
SEDBUK efficiency 90.1%Â

Baxi: Platinum Combi : 40 HE
gas : combi : condensing : wall mounted
Power Rating: (32 – 32 kW)Â
SEDBUK efficiency 90.0%Â

Baxi: Duo-tec Combi : 40 HE
gas : combi : condensing : wall mounted
Power Rating: (32 – 32 kW)Â
SEDBUK efficiency 90.0%Â

Baxi: Combi : 105 HE
gas : combi : condensing : wall mounted
Power Rating: (29.6 – 29.6 kW)Â
SEDBUK efficiency 87.3%Â

Baxi: Combi : Instant 80 HE
gas : combi : condensing : wall mounted
Power Rating: (24.0 – 24.0 kW)Â
SEDBUK efficiency 87.3%Â

Baxi: Combi : Instant 105 HE
gas : combi : condensing : wall mounted
Power Rating: (29.6 – 29.6 kW)Â
SEDBUK efficiency 87.3%Â

Baxi: Combi : 80 e
gas : combi : non condensing : wall mounted
Power Rating: (26.3 – 26.3 kW)Â
SEDBUK efficiency 78.6%Â

Baxi: Combi : 105 e
gas : combi : non condensing : wall mounted
Power Rating: (34.3 – 34.3 kW)Â
SEDBUK efficiency 78.5%Â

Baxi: Combi : Instant 105 e
gas : combi : non condensing : wall mounted
Power Rating: (34.3 – 34.3 kW)Â
SEDBUK efficiency 78.5%Â

This information has been collated from Manufacturers literature and the SEDBUK online database as at April 2007.

Small variations in efficiency ratings are not significant. It can be assumed that a 3% difference in rating will give a 95% confidence that the higher rated boiler is more efficient than the lower.

The purchase price of a new boiler is a very small part of the overall lifetime cost of a boiler. The cost of gas consumed over the 15 plus years that you will use the boiler could be in the region of £5000 to £8000 and a 10% or more energy efficiency improvement could be very valuable.

Identifying the most energy efficient boilers is now easy as the manufacturers publish boiler efficiency statistics and these are recorded in the government endorsed SEDBUK database.

The table below is reproduced from the SEDBUK site and shows the cost variation, resulting from changes in boiler efficiency, on annual running costs for typical domestic properties in the UK. The analysis is for household central heating and a gas boiler.

The costs outlined in the table are an average and represent those typically experienced for the type of property. It should be noted that there will always be variations on these figures caused by variations in climate (do you live in the north or south of the country), exposure (is the property exposed to the wind or in the middle of a city center), occupancy patterns ( sole occupancy or family) , heating controls ( modern, trv’s used etc), insulation ( loft and cavity wall), and other factors.

In the worst case scenario the 15 year heating costs for an old boiler with 55% efficiency in a detached house exceed £8000. These typically reduce to £5000, a saving of £3000, following the adoption of a modern condensing boiler with 88% efficiency.

This whole life calculation demonstrates that householders should factor boiler efficiency into their purchase considerations and not focus on finding the lowest price replacement boiler.