Query: Cuerrently I am assessing a commercial property There is a standalone woodpellet stove in the one zone providing the heat required for that space with no radiators attached. How would you recommend I enter this in sbem.
Response: Please form a HVAC System based on the stove system present in your assessment. Assign this to the area/zone that it is present in. The wood pellet stove should be entered as follows; “Type-Other local room heater - unfanned >Heat source-Room Heater>Fuel-Biomass”. Non default efficiencies should be entered if available. Otherwise default efficiencies should be followed
Attached is documentation regarding heat pump documentation Can you inform me if this is accecptable as technical data sheet.
We are working on the assumption that you are referring to assessing this product in a DEAP assessment for water heating only.
1) Please ensure the model in the dwelling you are assessing matches the model(s) in the test report.
2) If the test report IS for the product installed: a) First, check if the laboratory are accredited. Looking at http://www.european-accreditation.org/mla-and-bla-signatories the Czech body for accreditation are the CAI. Checking the CAI website, we can see the laboratory Strojírenský zkušební ústav, s. p. listed under the document here:
The laboratory are accredited to test to EN16147 according to this document so this test report can be used as a valid source of EN16147 data for the product detailed in the test report.
b) The test report is against the standard EN16147 (which is acceptable for DEAP as it supercedes EN255-3 (the standard referenced in DEAP) according to
the test report shows a COP of 3.059 (305.9%) when tested against EN16147 (considered equivalent to EN255-3 for the purposes of DEAP.
c) The 305.9% value would be applied using G1.1 or G1.2 as per the discussion above if it represents the product make and model being installed.
If there is an integral immersion OR the product can't heat the hot water store to 60 degrees or more, then apply G1.1. The COP above is entered into equation G1(b) in DEAP giving an efficiency in DEAP of 100 / ([75/305.9] + 0.25) = 201.9% with an efficiency adjustment factor of 1.0. If there is no integral immersion AND the product can heat the hot water store to 60 degrees or more, then apply G1.2. The COP oof 305.9 is entered directly in DEAP with an efficiency adjustment factor from table 4c of 0.75 (Heat pump supplying all DHW tested to IS EN 255-3).
In response to your query,
ON ASSESSING A PROPERTY I FIND THE MAIH HEATING GAS CONDENSING BOILER. THERE IS AN OPEN FIRE IN THE MAIN LIVING AREA SEPARATE FROM KITCHEN. IN THE KITCHEN THERE IS AN AGA STOVE WHICH RUNS 24/7
QUESTION WILL I TREAT THE OPEN FIRE IN THE MAIN LIVING AREA AS THE SECONDARY HEATING SYSTEM
Yes Range Cooker
no back boiler
not connected to water heating
mains gas fuel
From the information that you have supplied, With regards the Aga range cooker, as per the DEAP manual section B4.3
B4.3 Single burner dry heat range cooker This type is an appliance with a single burner that provides a cooking function. It is not included in DEAP calculations.
So the range is not considered in DEAP , therefore if there is no other choice for secondary heating then the open fire would be the secondary heating.