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View Full Version : Ductless Heater or Radiant baseboard ??



absoluteredo
11-26-2011, 11:46 PM
We are remodeling a 1920 home that has never had any ducting and are really not interested in putting in that kind of system.
I have a friend who works in heating and he recommends the Mitsubishi Ductless. My questions is, are they very good at heating a home?? The home is 1500sqft and he says 2 units should do the trick. My problem is that in the back part of the house is 2bdrm and 1 bathroom in the same hallway. He recommends putting one in one of the 2 bdrms and if i want to heat the other 2 rooms I have to keep the doors open. Hmmmmm??
After visting a friend he has a Radiant baseboard heating system in his house, which is about 3000sq ft and let me tell you it was quite and warm.
The ductless system is $. and the Radiant system is about $.
So I guess I am looking for any advice or if someone has had good or bad on either.
Any advice??????????????????????????????:whistle:

genduct
11-27-2011, 07:40 AM
You are going to have a level of surgically opening walls to run electric, refrigerant and condensate for the mini split or hydronic pipe or pex for baseboard SO why not have a conventional unit as an alternative. If for a penny, in for a pound (dollar in the USA)

The intelligent use of soffits and keeping the runs shor and sweet won't be any more effort, believe it or not

SkyHeating
11-28-2011, 03:13 AM
Many ductless manufacturers like Mitsubishi also offer small ducted units for those hard to reach places. You can place a single wall port in the main living area and then have a second unit with very short duct runs attach to the bedrooms and bathroom. Look for an SEZ-KD unit by Mitsubishi.

motoguy128
11-28-2011, 09:09 AM
Mini splits eliminate the need for ductwork, but hte equipment is quite a bit more expensive, and a heat pump just isn't going to heat as well or effciently as a gas furnace if you have gas available.

You have a fairly small house. Do you have an attic with access? or netter yet a basement? IF so, installing a unit in the attic and running insulated flex to the various rooms shouldn't cost much... or better running sheetmetal ducts in the basement. A lot cheaper than running a ton of pex and installing a boiler.

Again for a home your size and age, just a rough shot in the dark, but depending on your climate you probably only need around 2.5-3 tons of cooling and a 60kBTU furnace. For that size, you're looking at 8-10 supplies that should be distributed equally based on the heat loss of each room. But a load calculation should still be performed to make sure it's right... ideally a home energy audit should be done first to determine actual insulation values and air leakage. 1920's homes can be all over the map for insulation and tightness. Some are suprisingly good, others are very leaky.

Where are you located?