I was a professor of Mechanical Engineering many years ago. I have been
disabled for a long time. I am in the process of building a home, and have
come across a problem. I must have the temperature inside of the house,
24/7/365 at 67 degrees. I now live in TN and it gets very hot here, 95 is
I was told by several HVAC companies that the new heat pumps with an air
handler will work for my case. But from my old days of doing things by hand
and slid rule, a heat pump cannot do this, they say it can.
Can some one please advise me on this problem. If you do answer me, please
consider this, it concerns my life.
Prof. Jake Trexel
Ok Jake. No one else asked so you've got my interest. You need 67
What on earth medical condition is there that you need that?
Secondly, if you do in fact need that exacting temp requirement I
would certainly imagine you need humidity control.
Lastly, whatever you get, it obviously needs to be properly sized but
you'll need complete redundancy as in at least 2 complete systems.
Next to lastly, you'll need a back up generator that will handle 100%
capacity of your system.
Personally, I think you are in way over your head and cost is going to
be a major factor if you do indeed actually need those specific
LOL bubba's a doctor now!!!
Pull up your pants bubbs, you fat ugly degenerate!
--------------------------------- --- -- -
Posted with NewsLeecher v3.8 Final
Web @ http://www.newsleecher.com/?usenet
------------------- ----- ---- -- -
[original post is likely clipped to save bandwidth]
67F +-0F is impossible. Is humidity an issue as well? Is that actual
temperature or "heat index"?
If given a rational tolerance, any traditional system as well as
including heat pump can do the job. Humidity control may be a difficult
problem if needed.
If it is a true critical medical issue, a "safe zone" with a redundant
system and backup power seems equally vital.
Personal home page - http://gogood.com
gerry misspelled in my email address to confuse robots
First, I suggest you get an engineer certified in refrigeration or your
never going to be satisfied with any answer without mathematical and
Secondly, keep a CLOSE tolerance on your building construction, use
materials that do not allow infiltration, such as sprayed on foam verses
crappy fiberglass, or consider foam panel construction. Control the
infiltration with make up air, keeping a positive pressure on the home to
prevent unwanted pollutants and humidity infiltration. You won't obtain what
you desire using general construction methods and materials.
Third, I don't know what medical condition you have that require such
extreme control, but you should ask your certified licensed engineer if
commercial equipment isn't the best choice for you. Another choice is a two
stage geothermal system, which will control costs and eliminate the low
ambient operational problems. You may have to order Hot Gas Bypass on your
geothermal to control heat reclaim during extreme humidity days. Yes, its
available and used, just not that much for residential units. Being your a
past professor I imagine your going to have a much bigger and better house
than us stupid people on this newsgroup could afford! (TNC) So get ready
to really dig deep to meet the construction requirements, NO HVAC system
will work right if you use fiberglass crap and standard construction
Personally, I wouldn't give you a quote without engineering prints
specifically spelling out every detail, including duct size, placement of
ducts, refrigerant sizing with exact placement of lines, pressure settings
if HG is used, CFM to be done by certified balancing company, and a punch
list to make sure everything is right before letting you enter the home.
BTW, I have done lab work with tolerances of + - 1 degree with humidity in
the same bands. Never have I heard a hospital require such limits, and
certainly never have I heard of an illness with such tolerances for a home.
This is why I recommend you hire a licensed engineer in the HVAC field and
get specific prints.
I am not in HVAC business like my friend Barry
however we do work on extreme temperatures and humidity's
but I think you are asking for more then you may think
Yes you can have practically any condition with in reason
but those condition can run in lots dow big bucks that is
if this guys actually will gave you what you asking for.
67 Degrees +&- what is so critical?
how about RH as stated at what %?
you have being asked about RH. +&- what?
how about safety limits (if so critical)?
how about back up system?
how about air cool or water cool?
how about air filters?
how about ultra violet light to reduce or cutout allergy growth?
continuously RH in range above 50% can generate many problems
My advice is do more research and have contractor sing
guarantee to met you specs or needed requirements.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.