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Boiler Combi Types (Boiler for space heating and DHW (Efficiency…
Boiler Combi Types
Boiler for space heating and DHW
Efficiency Expression?
AFUE
Steady State
What data do I need to collect?
o
model number (only required when the efficiency is known);
energy source;
equipment type;
efficiency (AFUE or steady state);
record if a non-dampered combustion air supply duct is present;
pilot energy consumption (MJ/day);
fan/pump power (W): Data collection is not required, default values can be used;
manufacturer (only required when the efficiency is known);
energy efficient motor: Indicate if the fan/pump has an energy-efficient motor (e.g. brushless DC motor);
tank location if a buffer tank is present; and
storage tank capacity (L, gal. or U.S. gal.).
CSA P. 9-11
Efficiency expression?
Thermal performance factor TPF
What Data do I need to collect?
o
manufacturer;
model number;
energy source; and
the number of CSA P.9 tested systems installed.
Check NRCANs website
CSA P.10-07
Efficiency expression?
Overall Thermal Performance OTPF
Heat, HW AND HRV
What data do I need to collect?
o
manufacturer name;
model number;
energy source as either natural gas or propane; and
number of IMS installed.
Storage type or Tankless HW
Efficiency expression?
Energy Efficiency
Thermal Efficiency
What data do I need to collect?
Storage tank only
Make and Model if Eff is known, Energy Source, Equimpent type, Tank Location, Presence of Pilot, If there's a non dampered air supply duct, fan power if possible, otherwise use defaults
Condensing or Non Condensing Tankless With or Without a Secondary Storage Tank
o
manufacturer (only required when the efficiency is known);
model number (only required when the efficiency is known);
energy source;
equipment type;
energy factor;
presence of a pilot light;
record if a non-dampered combustion air supply duct is present;
secondary storage tank capacity: Do not include a tankless integral buffer tank if the volume is ≤ 7.6 L (1.67 gal. or 2 U.S.gal.). If larger, note the buffer tank volume;
location;
fan/pump power (W): Data collection is not required, default values can be used; and
energy efficient motor: Indicate if the fan/pump has an energy-efficient motor (e.g. brushless DC motor).
modelling storage tank water heater combo systems;
modelling non-condensing tankless combo systems (without a secondary storage tank);
modelling condensing tankless combo systems (without a secondary storage tank);
modelling non-condensing tankless water heater combo systems (with a secondary storage tank); and
modelling condensing tankless water heater combo systems (with a secondary storage tank).