New Trane broken already

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Originally Posted by I_bend_metal

There already is one! It got going pretty good, but it kinda lost steam...I have a million of 'em.

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where is it. I could give you a run for your money.

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Originally Posted by big windy

120,000 btu , 3.5 ton ac , same as the old Rheem equipt . It is a hair over for 2,400 square ft. , they feel the venting was more than adequate , hope they are right .

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:eek::eek: what did they size it with manual geee???


was old heater 95% efficient??

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Originally Posted by t527ed

:eek::eek: what did they size it with manual geee???


was old heater 95% efficient??

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No, the flue pipe didn't have any holes in it. :)

http://www.hvac-talk.com/vbb/showthr...t=Movie+Quotes

It started out as a TV quote thread...ended up with a little of everything.

That thread died.

Time to start a new one

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Originally Posted by big windy

120,000 btu , 3.5 ton ac , same as the old Rheem equipt . It is a hair over for 2,400 square ft. , they feel the venting was more than adequate , hope they are right .

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That's a lot of furnace. Sis has same size house and 75K 92% furnace! And we get below zero each winter.

They better check static pressure of the duct system. Still think an airflow issue.

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Originally Posted by big windy

120,000 btu , 3.5 ton ac , same as the old Rheem equipt . It is a hair over for 2,400 square ft. , they feel the venting was more than adequate , hope they are right .

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whats the duct size??? How big is the cold air drop? The vent pipes should be 3" and they can run out 200 liner feet? How many 90° elbows are in the vent pipe?

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Originally Posted by BaldLoonie

That's a lot of furnace. Sis has same size house and 75K 92% furnace! And we get below zero each winter.

They better check static pressure of the duct system. Still think an airflow issue.

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thats what I'm thinking. I think he's got undersize duct, or not enough cold air return.......or both :rolleyes:

Your new furnace most likely has significantly more heating capacity than your old one, and has much higher airflow requirements.
I hope they increased your ductwork too.

Did they do a load calculation, or just replace input capacity for input capacity?

How to stop a Trane: Buy Westinghouse equipment; they make train brakes too.

See? Not so hard. Just a matter of switching suppliers.

I agree, sounds like a LOT of furnace for that house! Was a Manual-J Calc done on the home when you got a bid?

A static test should be done, and also temp rise.

The exhaust vent and cold air intake are 3"x 6' w 3 elbows
returns are 2-14"x8" and a 6" round
send vents 10"x8" , 10"x24", 18"x8"

Rheem was 80 vented to chimney .
If I am over sized what are my options . None of the 4 contractors did static tests etc. Looks like I have a bigger problem than a switch eh.

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Originally Posted by big windy

The exhaust vent and cold air intake are 3"x 6' w 3 elbows
returns are 2-14"x8" and a 6" round
send vents 10"x8" , 10"x24", 18"x8"

Rheem was 80 vented to chimney .
If I am over sized what are my options . None of the 4 contractors did static tests etc. Looks like I have a bigger problem than a switch eh.

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Since it was just installed, I would be demanding to see the load calculation. And if it is in fact oversized, I would be wanting the proper sized unit.

If the unit is sized properly and the ductwork is the problem, then you need new ductwork. But if the contractor never mentioned the need for ductwork, I would be asking for pretty good price.