Vent a High Efficiency Infinity Carrier (et.al.) througfh a Panasonic Spot EVR (they have only one) in a semi Cold Climate
M_Sheppard
| Posted in Energy, Heating & Insulation on
EVR’s are not good in cold cimates (given). Can one vent a Carrier (or other) 97 efficient furnacen thru the Panasonic spot EVR and gain the limited humidity control with the cold climate efficiecty of an HVR?
Replies
Panasonic is clueless
Spent 45 min on Panasonic site and could not recieve an answer. (FYI)
M
Have you asked this question at Heatinghelp.com?
http://www.heatinghelp.com/
I believe what he is wanting to do is to capture the minimal heat that is in the "flue" gases of a 97% furnace by running the flue gases into the ventilator.
That would be extremenly foolish.
I don't disagree but that is what I interpret to be his question...and it completely ignores the fact that the way they get to 97% and are condensing furnaces is because they already are extracting so much heat out of the exhaust gasses in the first place. The first question would be how much potential heat is still left in the exhaust gasses? Then you would have to reduce that by efficiency of the recovery ventilator. If he actually is thing of discharging the exhaust gas through the same ventilator as he uses for the house, then we won't have to worry about very many more questions from him and his family. You would have to have two recovery ventilators to keep the exhaust gas isolated from the homes air system and those puppies aren't cheap. If there was that much latent heat left over, I can only assume the furnace mfgs would be capturing it to boost efficiency if it made economic sense.
Yeah, the EVR uses an absorptive wheel/drum to transfer heat and humidity from the warm air to the cold. It would also tend to transfer combustion products -- CO2, CO, sulfur compounds, etc. Not good. And the heat gained would be miniscule (if any at all).
If he needs to increase humidity then a humidifier on the furnaced would be a better way to go.