[DeTomaso] Heater Hoses & Pipes

[Tomas Gunnarsson]

When adjusted to fully close the heater valve the lever operating range allows cabin heating to "normal room temperature" when ambient temperature is low enough to give frost on the outside of the windows. That covers the driving conditions for most Panteras IMO. The issue of keeping the windows clear is more a problem with poor air circulation (read: no fresh air intake) and defroster vent design.

Tomas

----- Original Message ----- 
From: <JDeRyke at aol.com>
To: <MyCars at Comcast.net>; <detomaso at realbig.com>
Sent: Sunday, August 24, 2008 8:02 AM
Subject: Re: [DeTomaso] Heater Hoses & Pipes


> In a message dated 8/22/08 11:46:17 PM, MyCars at Comcast.net writes:
> 
>> On a side note, I was also thinking of insulating these pipes in an attempt 
>> to help keep the cabin cooler. Do you think that would help?
>> 
> Be very sure you have a pair of bronze pipe ball-valves plumbed into the 
> hoses going to and from those pipes; the stock Pantera dashboard controls cannot 
> be adjusted to fully shut off the water flow thru the heater and also fully 
> open for good heating & defrosting. The mismatch in leverages usually allows a 
> trickle of hot water thru the heater while the A/C is on, making the A/C work 
> harder, so we add manual shut-off valves. 
> In summer when one doesn't need heat, the manual valves also protect against 
> a hose blowing off or rupturing under your dash, scalding your leg and 
> instantly fogging the windshield, usually at high revs. This has caused crashes. The 
> valves can be placed such that an owner can reach them without opening the 
> decklid.   With manual shut-off valves in the system, the heater pipes have no 
> water flow thru them unless the heater is in use, so insulating them is a bit of 
> trouble and not very useful. Good luck- J Deryke
> 
> 
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