Its a TRUEHEAT - 36MH(F?) Can barely read it.

On newer mobile homes, there are those shiny metal chimney pipes that stick up like 3 ft above the roof.

Where can i get one of those?

So approx, how much am I looking at to shingle a 20 square roof using 3 tab shingles? (doing it myself)

( I have done roof work, just never had to figure out cost, or materials needed etc.)

I got on the roof and measured end to end, and the back side it was 55 ft. From the bottom (where the shingles meet the gutters) to the ridge was 15'.

Back side is basic - 15' x 55' for A=825' or 8.25 "square"

Front has a gable I think its called.

Heres a crude drawing.