Advice for new HVAC unit - new construction - any advice?
I am a newbe currently getting estimates from HVAC professionals to provide a complete HVAC system for my new house (my friend is the GC and I am helping get quotes). The plans are complete. The house is a two-story (with walk out basement) covering a plan area of about 80x40. House is in mid-Michigan (Brighton) and there will be little to no shade trees around the house. Front of house faces south.
I am unsure as to what HVAC brands are better than others (i.e., are there ones to avoid) and I am looking for advice into what questions I should be asking HVAC professions when I call.
Due to the house size, my intuition is that the HVAC will be a two system arrangement (2 furnaces and AC units).
I was wondering about Coleman furnaces - one individual recommended them.
Just trying to get an idea of options that are out there. I want to do things right the first time.
Suggestions/recommendations are welcome. Also, if additional information is needed please ask.
Define _ Right the 1st Time _ ... Contractor Selection.
You don't need to ASK Any questions.
Originally Posted by ENGRGRAD
with Completed plans.
The mechanical contractor needs to address your plans which you have stated ARE COMPLETE.
Complete must mean ADDRESSES ALL MECHANICAL and BUILDING THERMAL ENVELOPE ISSUES _ not Just finished.
_ Indoor thermostat set-points and % R.H. specified.
_ Plans and mechanical specs Complete.
_ Basement wall detail is provided.
_ Extended overhangs on West and South facing windows are detailed.
> ~ R-40 spray foamed underdeck roof?
_ < U 0.3 windows
+ > R-19 walls
__ Maximum length of flexible duct < 12 feet.
Outside air requirement with or without HEPA.
Maximum infiltration of < 0.2 ACH is stated for builder to adhere to.
Blower door test SHALL validate.
Maximum energy use is specified.
HVAC Equipment and installation budget given.
What types of heating and cooling?
Natural Gas is available?
Solar hot water heater?
Air or GSHP?
Geo, hybrid and/or radiant?
Radiant heating in which areas.
Space on lot has been designated for GEO-Thermal?
5 inch, MERV 7 or 8 filter.
Where are the TWO Mechanical Rooms?
Do they minimize air distribution issues?
You did say plans are complete, correct?
RIGHT THE FIRST TIME.
Your Best local contractor is _ CMR Mechanical, Clare and Trevor.
Any specific issues, my e-mail address is in my profile.
Send PDF of current plans so I can see what relatively complete actually means.