THE CHALLENGE OF CATEGORY IV GAS-FIRED APPLIANCE VENTING

摘要

Preplanning as part of the sales process will eliminate many of the issues technicians face in the field. Which 90 per cent AFUE furnace brand got into Canadian basements first? Perhaps it was Clare Brothers HEG series MegaSave furnace or maybe the Lennox G14 Pulse shared the limelight with Clare for first high efficiency gas furnace on the market, my memory fails me now. Venting with plastic pipe was the future, what could be simpler?