EnerGuide sticker for the Rinnai RUC 98 tankless water heater, a 95% efficiency choice for a natural gas water heater. Photo David Dodge, GreenEnergyFutures.ca
EnerGuide sticker for the Rinnai RUC 98 tankless water heater, a 95% efficiency choice for a natural gas water heater. Photo David Dodge, GreenEnergyFutures.ca