Heat exchangers — clamshell vs tubular?
DanH
| Posted in Energy, Heating & Insulation on
Well, the guys that sell Lennox and Carrier are claiming that clamshell heat exchangers are more reliable than tubular ones, and of course the other guys (who have tubular heat exchangers) are claiming that clamshells are a POS.
So, anyone got any opinions, or, failing that, some actual facts on this issue?
If ignorance is bliss why aren’t more people happy?
Edited 2/23/2006 3:18 pm by DanH
Replies
Who offers the best warranties?
Most of the manufactures I deal with use tubular designs, and most have lifetime warranties.
Pretty much everyone offers a warranty of 10 years or more, and a "lifetime warranty" isn't worth much if it doesn't cover labor. I figure I'm going to have to resort to calculus to compare the warranty details.
If ignorance is bliss why aren't more people
happy?
And a related question:
Several folks have claimed that the variable-speed DC motors use only 1/3 as much electricity as the standard AC motors. I'm having a little trouble understanding this, since the standard AC induction motor is generally about 80-90% efficient. Seems like something's being left out of the equation.
happy?
They all do claim that It confuses me too.
electrical work is electrical.
I have been told they are very expensive $600 vs $150 for a "regular" motor at those prices they better save a lot