Difference between revisions of "High-Efficiency Combination Boilers"

 
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{{Combi Boiler Template
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{{High-Efficiency Combination Boilers
 
|Description=A combi boiler is a high efficiency boiler and heater, contained within a compact unit and does not include a water tank.
 
|Description=A combi boiler is a high efficiency boiler and heater, contained within a compact unit and does not include a water tank.
 
|Advantages=*Space saving
 
|Advantages=*Space saving
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|Image=
 
|Image=
 
|Trade=
 
|Trade=
|Fuel= Gas
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|FuelMin=Gas
|Operating Efficiency= 91.1%
+
|FuelMax=
|Annual Degradation Rate in Efficiency= <9%
+
|Operating EfficiencyMin=91.1
|Heat Output Central Heating= 30 kW
+
|Operating EfficiencyMax=91.1
|Heat Output DHW= 39 kW
+
|Annual Degradation Rate in EfficiencyMin=
|Dimensions= 86x72 inches, 181x72 inches
+
|Annual Degradation Rate in EfficiencyMax=9
|Weight= 330-840 kg
+
|Heat Output Central HeatingMin=30
|Maximum DHW Flow Rate= 37 kW
+
|Heat Output Central HeatingMax=30
|Maximum DHW Flow Rate Required= 3 kW
+
|Heat Output DHWMin=39
|Minimum Operating DHW Pressure Required= 30-150 psi
+
|Heat Output DHWMax=39
|Mechanical and Hydraulic Connections= Boiler feedwater pump, Boiler connection kit
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|Output CapacityMin=39
|CH Flow/Return Pipe Size= 10.2-139.7
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|Output CapacityMax=39
|DHW Flow/Inlet/PRV Size= 20-50 mm
+
|DimensionsMin=86x72
|Noise Level= 45 dB
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|DimensionsMax=181x72
|CO Emissions Maximum= 40mn/m3
+
|WeightMin=330
|NOX Emissions Maximum=0,02ppm
+
|WeightMax=840
|Investment Cost= £500 - £2,500 in UK
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|Maximum DHW Flow RateMin=37
|Operational Cost= £666 Average Bill
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|Maximum DHW Flow RateMax=37
|Replacement Cost= £500 - £2,500 in UK
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|Maximum DHW Flow Rate RequiredMin=3
|Life Expectancy= 5 years (taken as warranty)
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|Maximum DHW Flow Rate RequiredMax=3
}}
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|Minimum Operating DHW Pressure RequiredMin=30
 
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|Minimum Operating DHW Pressure RequiredMax=150
[[Category:Boiler]]
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|Mechanical and Hydraulic ConnectionsMin=Boiler feedwater pump, Boiler connection kit
 +
|Mechanical and Hydraulic ConnectionsMax=
 +
|CH Flow/Return Pipe SizeMin=10,2
 +
|CH Flow/Return Pipe SizeMax=139,7
 +
|DHW Flow/Inlet/PRV SizeMin=20
 +
|DHW Flow/Inlet/PRV SizeMax=50
 +
|Noise LevelMin=45
 +
|Noise LevelMax=45
 +
|CO Emissions MaximumMin=40
 +
|CO Emissions MaximumMax=40
 +
|NOX Emissions MaximumMin=0,02
 +
|NOX Emissions MaximumMax=0,02
 +
|Investment CostMin=500
 +
|Investment CostMax=2500
 +
|Operational CostMin=666
 +
|Operational CostMax=666
 +
|Replacement CostMin=500
 +
|Replacement CostMax=2500
 +
|Life ExpectancyMin=5
 +
|Life ExpectancyMax=5
 +
|}}

Latest revision as of 11:24, 1 March 2017


[edit]
Description A combi boiler is a high efficiency boiler and heater, contained within a compact unit and does not include a water tank.
Advantages
  • Space saving
  • Reliable design
  • High energy efficiency
Disadvantages
  • Certain conditions may result in low water pressure
Characteristic features
Application barriers
Information sources Source Source Source
Image
Trade:
Parameter Minimal Value Maximal Value Unit
Fuel

Gas

Operating Efficiency

91.1

91.1

Annual Degradation Rate in Efficiency

9

%

Heat Output Central Heating

30

30

kW

Heat Output DHW

39

39

kW

Output Capacity

39

39

kW

Dimensions

86x72

181x72

inches

Weight

330

840

kg

Maximum DHW Flow Rate

37

37

kW

Maximum DHW Flow Rate Required

3

3

kW

Minimum Operating DHW Pressure Required

30

150

psi

Mechanical and Hydraulic Connections

Boiler feedwater pump, Boiler connection kit

CH Flow/Return Pipe Size

10,2

139,7

DHW Flow/Inlet/PRV Size

20

50

mm

Noise Level

45

45

dB

CO Emissions Maximum

40

40

mn/m3

NOX Emissions Maximum

0,02

0,02

ppm

Investment Cost

500

2500

£

Operational Cost

666

666

£

Replacement Cost

500

2500

£

Life Expectancy

5

5

years

Deterioration Description
Causes
Parameter
Degradation Rate
Measurement


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