winter time-heating advice
?
I have a few questions below, I live in a 1250 SF Ranch type home built in 1997.
- What direction should I have my ceiling fans turn during the winter months (blowing air down, OR sucking it up)? I've heard this argued both ways... Having them turn so the heat blows down from the ceiling seems logical, but can cause a "breeze" that will make you feel colder (thus making you turn the heat up in the house, costing more in heating).) BUT if you have them pulling the air up that heat could be trapped at the ceiling, with the cold air at the floor.
- Should I leave the ceiling fans on ALL the time (24/7) in the winter, like will the cost saving on the Gas bill (for the furnace) over come the extra electricity spent running the fans all the time?
- I have a programmable thermostat, and keep the temp in the house at 69 while I'm there in the evenings, 64 while I sleep...how low is too low to set the daytime temp (while I'm not there). Currently I set it down to 62, and it takes it about an hour and a half to make it back up to my 69 set point for the evening.
BTW, great idea for a thread! I'm enjoying the questions and responses!
- What direction should I have my ceiling fans turn during the winter months (blowing air down, OR sucking it up)? I've heard this argued both ways... Having them turn so the heat blows down from the ceiling seems logical, but can cause a "breeze" that will make you feel colder (thus making you turn the heat up in the house, costing more in heating).) BUT if you have them pulling the air up that heat could be trapped at the ceiling, with the cold air at the floor.
- Should I leave the ceiling fans on ALL the time (24/7) in the winter, like will the cost saving on the Gas bill (for the furnace) over come the extra electricity spent running the fans all the time?
- I have a programmable thermostat, and keep the temp in the house at 69 while I'm there in the evenings, 64 while I sleep...how low is too low to set the daytime temp (while I'm not there). Currently I set it down to 62, and it takes it about an hour and a half to make it back up to my 69 set point for the evening.
BTW, great idea for a thread! I'm enjoying the questions and responses!
fyi to all-on winter check-ups, on natural gas winter check-ups on boilers and furnaces-make sure it's cold outside and there is a draw on the gas in the neighborhood so when the gas pressure is checked by a tech, it's accurate.
now on oil and gas fired furnaces,make sure the temp rise is in mfg's specs and the temp in supply duct work at 2' past the first 90 is ~10 degrees warmer than the return temp, too many guys never adjust the delay off time in heating mode, leaving too much heat in your ductwork that you paid for and not in your living space, this also will preserve and elongate the life of your heat exchanger.
LOL. my credentials are, im nate certified, epa certified, have done installs for 6 yrs, and service for 3yrs for a perty big company, if you load a well insulated home, that would be a real close guess. of course the windows direction of the home, blahblah blah alll take effect. thats close though
Last edited by JJDH; Oct 19, 2009 at 07:38 AM.
Our hvac contractors(all 5 of them) do not recommend them but in some cases the fans do serve a purpose. Especially if the buyer wants a certain design built and it's not hvac friendly. See it all the time on the custom Lake Erie homes. Of course it's always after they have moved in and then start complaining when we knew it was going to be a problem 

close enough, that isn't good enough for me or my customers,i'm not like the hacks out there that get in a low ball bidding war installing house brand equipment and flex duct .in todays age of fossil fuel costs and electricity costs, gone are the days of oversizing equipment and bigger is better theory.in reality you get what you pay for...
Funny thing about that is they would rather spend 2200.00 (or whatever you want to charge them) on upgraded trim or bath fixtures or what not than spend the money on zoning (most of them anyways).
Thanks for the help fellas, I am in the process of remodeling this house. I bought it in june, it was built in 1945 and then had a little work done in the late 70's. When the house was bought there was no insulation and the ex owners said it was taking 200gallons of propane a week to heat the house and they couldn't afford that so they sold it. I filled the walls with cellulose and put 20" in the attic, it hasn't gotten real cold yet hear but the heater rarely kicks on and when it does it only takes a few minutes before it back up to temp and shuts off. I guess when I get ready to make the change I will have them come run test and see exactly what I need. I wish one of you guys were closer, because its would be nice to find someone that I feal I can trust to do it.
anytime bud,my theory is find out what the customer wants, show them what they actually need,fully educate them on what they are getting,what it will cost, and what they are paying for their return,i give them all the necessary info to make a wise ,unpressured decision.i usually spend 2-2 1/2 hrs on a proposal and estimate with a customer, i guess thats why the fellow contractors don't like me around here-i don't rip people off and i don't hide info...
I've seen the stick thermometers that HVAC techs use - I'll have to pick one up and take readings. Can I buy a gauge at a home improvement store to check the cfm, or is that an expensive item only found at HVAC supply places?
Not very close....I'm about 80 miles further south
Honestly, I don't know. I've never been in the attic. I'll have to go up there this weekend and take a look. I have an open foyer, and the thought of falling through the ceiling and going 19 feet down to the first floor has kept me out of the attic.
It's only 5 years old.
Neither, but I won't bash them. It's a local company here in Southern MD. I might just ask them to come look at it and get advice - without mentioning that they did the install. Then if they start badmouthing the original installer I'll let them know that it was them.
I looked into the booster fans and wondered just that - if they would make the air colder.
Thanks for your help!
is the duct work used coming off the main truck lines? -round pipe or flexible duct?2-i bet they didn't size duct work for 900 fpm on the supply side-even if 1 room is farthest away from unit- if ductwork is SIZED CORRECTLY,and dampers are used at main lines at branch takeoffs- this won't be an issue-?
It's only 5 years old.
Neither, but I won't bash them. It's a local company here in Southern MD. I might just ask them to come look at it and get advice - without mentioning that they did the install. Then if they start badmouthing the original installer I'll let them know that it was them.
Thanks for your help!
close enough, that isn't good enough for me or my customers,i'm not like the hacks out there that get in a low ball bidding war installing house brand equipment and flex duct .in todays age of fossil fuel costs and electricity costs, gone are the days of oversizing equipment and bigger is better theory.in reality you get what you pay for...
no need to measure cfm, its calculated on heat rise.. just call a company to check it. there is alot more than heat rise to look for, like proper combustion, efficiency, amp draws, micro amps, so on so forth, using a bachrach machine, co2 levels, co levels





