cln wrote:
On Aug 17, 2:16 am, "Zyp" wrote:
marson wrote:
On Aug 16, 12:12 pm, cln wrote:
Moved into the newly bought house and notice someone had not
installed the proper vents on the Air Exchange. I had 2 exhaust
vents. Went to the local hardware store and swapped the vent.
Great...easy.

Since then my heating bills have sky rocketed. Even after filling
in 'gaps' with spray insulation and other DIY jobs. I've come to
the conclusion that the air to air system is the problem.

We all know the 'X' pattern of air going trough the machine warming
up the cold exterior air before exiting and circulating trough the
house. Great... Fresh air!
But wait! I'm throwing out heat aren't I??? The system is a few
years old yes, but the 'X' pattern is the same as my parents' 2
year old house... WTF.

I've talked about this to my father and he's also noticed that new
houses now do not hook-up the intake to the wall vent. They just
let the 4" hose hang there.
I have to double check if it's the intake or exhaust but this is
were I'm not certain what should/could be done. Your feedback is
much appreciated.

cln

What do you mean two exhaust vents? You mean two vent hoods with
flappers or what? A HRV is not perfectly efficient, but your
heating bills should not skyrocket. It should also be balanced so
that your house is not negatively or positively pressured
excessively. Sounds like you need to call either your builder or an
HVAC guy.

If you have an ERV or HRV unit that exchanges with the outdoors, you
NEED to call and HVAC expert. This is an expensive piece of
equipment and is not for the DIY.

--
Zyp- Hide quoted text -

- Show quoted text -

Ya I should've tought twice when I sent the post. Its not a HVAC but
just an Air exchanger. Not the compressor ones but just the fan.

Hmmm... you mean like H=Heating, V=VENTILATION, AC=Air Conditioning, You
mean like that?

If I'm not mistaken, it is an exhaust VENTILATOR tied to the HVAC system,
with a diesicant wheel for performing an energy exchange with the exhausted
air.

If the energy wheel becomes overloaded with material or moisture, it won't
work.

Call your local HVAC shop, ask if they are familuar with an ERV [Energy
Recovery Ventilator] or HRV [Heat Recovery Ventilator] or if they could
recommend someone who is.

--
Zyp