AboutHoward Livingston Expertise Can answer questions on electrical control circuits, power supply,airflow & distribution, electrical components,refrigerant problems,gas, electric & propane furnaces.No boiler or refrigerator or oil fired furnaces experience.Just HVAC questions please.
Experience 35 years experience in residential & light commercial repair & installation.
Question QUESTION: Hi Howard,
We've just had this unit installed after our old oil furnace went kaput, using the same duct work (although we did have it cleaned. We live on the seashore of the west coast of Canada, with approximately the same weather as Seattle. Our house is approximately 1500square feet with a small basement and crawl space.. Most of our living space is on the ground floor including our bedroom but we do have two small upstairs rooms.. Our problem is as follows:
We turn the turn the thermostat down to 15 degrees celsius at night and open our bedroom window as we like fresh air when sleeping. The temperature in the house falls to 15 degrees and stays there. In the morning, we close the window and turn the thermostat back up to 20 degrees celsius. It takes the furnace 2+ hours to bring the temperature in the house back up to 20, much longer than our old inefficient oil burner. Does this seem normal to you? The gas man is coming some time later this week to check things out and I would like to prepared.
Thanks for any information or advice.
Bill
ANSWER: It's all about btu's. Whats the comparison from old to new ? How about the air volume from the old to new furnace too ? Got to move the btu's via the airflow.
---------- FOLLOW-UP ----------
QUESTION: Hi Howard,
Thanks for the quick response.
Unfortunately, I don't know the btu's of the old furnace, nor anything about air volume. I do know that the fan/blower in the new furnace is not as strong as the old one. The furnace man called this am and is coming tomorrow with the gas man to 1) bypass the low fire setting and have it go immediately to the high fire setting, and they are going to increase the speed of the fan/blower. Does this seem reasonable to you?
Chers,
Bill
Answer Fans has speed adjustments but the increase from one to another is 50 rpm. Not much but can help. Tie a string to a supply grille & test what it does with the fan on. Then check it after the speed increase.Put the string on the grille the fartherest away from the furnace.
