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| r_towle |
 Nov 12 2005, 06:05 PM
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Custom Member  Group: Members Posts: 24,705 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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I just got my full set of up-derfixen from the PCA...
Anyways...there was a great simple article about making the heat more efficient... The reccomended lots of things, including filling the longs with foam beads.... The three I think are good for the 914 1) Wrap the heater tubes with duct insulation, there are two in the engine bay, one from each heat exchanger to the tube. There are two in the trunk, up front...just paper. 2) Put a complete cover, except the gas tank filler, over the entire area between the struts and the dash. Basically you are covering it up so no fresh air can get into the dash. 3) remove the fresh air boxand put a plastic cover on it for the winter... Rich 2) |
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| r_towle |
Nov 12 2005, 11:11 PM
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Custom Member Group: Members Posts: 24,705 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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the article went in serious detail....they sent a car to a company in minnesota to study the possible upgrade...had meters looking at heat loss... They concluded that it was not an issue of the heater boxes design...that was fine...but the issue was really two fold. Air leaks in the cabin Insulating the heating tubes coming from the back of the car. The car is blowing air at around 270 degrees once it leaves the heater boxes, more than enough...problem is (according to these guys) there is a 10 degree per foot loss of heat in un insulated tubes.. Then you add in the fresh air which is blowing in COLD air into the defroster and heater circuit and the heat loss is amazing... Rich |
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Posts in this topic
r_towle hot heat Nov 12 2005, 06:05 PM
Cap'n Krusty Granted, it rarely gets below freezing where I liv... Nov 12 2005, 06:58 PM r_towle I have the books right here, but didnt even bother... Nov 12 2005, 10:17 PM Spoke <... Nov 12 2005, 10:47 PM
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