Direct Vent Heater source/Size for 8x16 older Ice Castle

[BlackLabGuy]

We bought a 2004 vintage 8x16 Ice Castle (No V front) that had a non-vented heater we want to replace with a Venter one.  Any recommendation on BTU size and sources to buy a new heater?

 

Thanks

[Boar]

atleast a 20,000 and cant go wrong with empire

[Iambjm]

Check out Unclaimed Freight in Milaca, they have the direct vent furnaces. That's where I bought mine for my Yetti.