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New condo forced air heating -- expensive to run?

Started by mh330
over 14 years ago
Posts: 105
Member since: Oct 2006
Discussion about
I've been looking at some new developments, and it seems that the days of the good old baseboard radiators or steam radiators are gone. Everyone's got hyronic forced air or ductless mini-split systems installed. So the question is, has anyone bought into a new building with these types of systems, and how much are your operating costs to heat in winter, and cool in summer? Astronomical? Reasonable? Cheap? Also heard that the mini-split systems basically stop heating when the outside temperature drops below freezing and need a backup heating source. Would love to hear some thoughts from those with experience with these units. Thanks!
Response by Wgirl PRO
over 14 years ago
Posts: 2
Member since: Nov 2009

I have an HV/AC unit. Average cost is $250 per month for my place which is pretty large - 2200 sq ft duplex. The key to those kinds of machines is: make sure the thermostat is not in the kitchen where it tends to be warmer there fore not registering the actual temp in the rest of the house. In the winter my gas bill is higher and in the summer the electric bill is higher. Spring I don't really need to use it that much.

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Response by jeremyfg
over 14 years ago
Posts: 44
Member since: Jan 2011

I have water-sourced forced-air HVAC. Costs $300 a month on average, to heat my 2000sqft high-ceiling loft.

More in Summer when the fans run for longer to keep it cool. Less in Spring/fall when temps are ok.

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Response by Dwayne_Pipe
over 14 years ago
Posts: 510
Member since: Jan 2009

The problem with forced air heat is that, too often, it is DRY!! TERRIBLY DRY!

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Response by jeremyfg
over 14 years ago
Posts: 44
Member since: Jan 2011

Dwayne - good point. My apt is dry as a bone during our non-humid winter months... I run several humidifiers to take the edge off, but wish I had an hvac installation with a humidifier...

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Response by Dwayne_Pipe
over 14 years ago
Posts: 510
Member since: Jan 2009

Can one add a humidifier to an HVAC installation on an individual unit? Or does it have to be done building-wide? Like Jeremy, my apt is bone dry in winter; last winter i literally shrivalled up into a piece of lint and blew away ...

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Response by bramstar
over 14 years ago
Posts: 1909
Member since: May 2008

Dwayne is correct--forced air heating is uber-drying and headache producing. It is a personal deal-killer for me.

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Response by somewhereelse
over 14 years ago
Posts: 7435
Member since: Oct 2009

I feel the same way about radiators. I was SO glad to leave the apartment that had one.

I have one of the combo units. Does its job... having the digital thermostat is nice, but I think programmable is key there.

Would also love programmable windows / ventsthat let the heat out during the day, then close when the ac turns on an hour before I get home.

Sorta like the Prius I guess.

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Response by lad
over 14 years ago
Posts: 707
Member since: Apr 2009

I also have much more of a problem with radiator heat than with forced air heat.

I lived in a building with radiator heat and had to run humidifiers constantly (literally 24/7 in living room and bedroom), moisturize my entire body twice a day, and still I had extremely dry skin that itched constantly.

Now I have a heat pump, I've given away the humidifiers, and the only moisturizing I need to do is for vanity.

Different strokes for different folks, I guess.

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Response by somewhereelse
over 14 years ago
Posts: 7435
Member since: Oct 2009

Yeah, my folks have forced air, and its still 100x better than my old radiator.

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Response by Dwayne_Pipe
over 14 years ago
Posts: 510
Member since: Jan 2009

So if BOTH forced air and radiators are bad choices...what would be optimal?

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Response by NWT
over 14 years ago
Posts: 6643
Member since: Sep 2008

Forced air from a central air-handler that can add moisture. That's what office buildings, museums, etc., use.

Your standard radiator or under-window PTAC isn't going to do that, so all you can do is run a humidifier and spend a lot of time filling it with water.

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Response by wisco
over 14 years ago
Posts: 178
Member since: Jan 2009

i really like forced air because i think i can regulate it well. do run cheap humidifiers in our bedrooms if somebody is sick, but not all the time - just once in awhile. i think that looking at how well your walls are insulated and what kind of windows you have is important to your monthly costs. also, higher floors will be warmer. it's pretty much apt by apt for costs due to the insulation issue. if you find a place you like, but it's not well insulated, it's a pretty easy process to have more insulation blown into the walls or ceilings. ask questions. i really dislike radiator because they can get beat up, and prevent you sometimes from putting furniture where you want to. i also think that really never look too good.

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Response by flarf
over 14 years ago
Posts: 515
Member since: Jan 2011

There are plenty of humidifier options for residential forced air systems. They generally use a wand that sprays a fine mist into the outbound duct from the furnace, or a sponge-type roller that continuously spins through a pan of water at low RPMs. Both need a water line. Use the Google for more details.

I consider underfloor hot water radiant heating to be optimal. Highly efficient and completely out of sight. If you install it in a concrete subfloor as it is poured, the concrete acts as a massive heat sink and makes it incredibly efficient. The tubing can also be laid on top of existing floors or under wood subflooring between joists, but will need hotter water and be slightly less efficient as a result.

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Response by alanhart
over 14 years ago
Posts: 12397
Member since: Feb 2007

Neither solution is an option for an existing apartment building in which only the unit owner seeks change.

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Response by huntersburg
over 14 years ago
Posts: 11329
Member since: Nov 2010

Alan, you've been very against communal living today. This morning you were anti-small building. Now anti-large building. Not very communist of you alan.

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Response by flarf
over 14 years ago
Posts: 515
Member since: Jan 2011

I'm not sure what part of "So if BOTH forced air and radiators are bad choices...what would be optimal?" mentioned anything about existing apartment buildings in which only the unit owner seeks a change.

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Response by flarf
over 14 years ago
Posts: 515
Member since: Jan 2011

And of course, if you're referring to humidifiers for residential forced air systems, then I'm not sure how you reconcile your dismissive statement with units that have their own individual HVAC systems. I've seen a number of new construction buildings in which each unit has its own forced air furnace.

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