Your furnace quits in October, so you order a new one, and it shows up a week later. You pull the dead unit out, slide the new one toward the opening, and it’s four inches too wide. Now you’re doing carpentry all because you wanted to replace your furnace.
The InstaHeat 20K Compact RV Furnace goes straight into the hole your old one came out of. Fogatti sells it as a direct replacement for Suburban’s NT-SEQ series, which is what a lot of small trailers and truck campers left the factory with, so there’s a fair chance that’s the unit you’re looking at right now. Pull the old one, slide this one in, and you’re done before lunch.
Why Most Replacements Don’t Fit
Go look at the shape of what you’ve already got. A Suburban NT-20SEQ measures 9-1/2 inches tall, 9-3/8 inches wide and 22-1/2 inches deep, so the face of it comes out close to a square.
Now look at the other furnaces you’ll be offered. Fogatti’s own 25K is 8 inches tall and 17-3/4 inches wide, and the 30K is within a hair of it. Flat, wide, and perfectly good if that’s the shape of the hole you’ve got. Put either of them where your NT-SEQ used to sit, though, and you’re cutting cabinetry, moving a gas line and framing a new opening to suit the furnace.
The 20K doesn’t ask you for any of that, because it was drawn to the shape you’ve already got. Square face, straight into the hole, and the only tool you need is the one that got the old unit out.
It’ll Fit Any Wall You’ve Got
The 20K comes in five versions, each with a different length of vent pipe. You pick yours off a measurement Fogatti calls the X-dimension, so grab a ruler: push it into the air intake until it stops against the outer cover, then read the number off.
Anything from 22-1/4 to 27-7/8 inches is covered, so almost any wall you’ve got will work.
Serious Heating On Just a House Battery
Twenty thousand BTU, CSA certified, running on 12V DC off your house battery and your propane, and it fires on electronic ignition. That means you won’t be stuck without a pilot light because it blew out at 2am.
The burner pulls its air from outside the rig and pushes the exhaust straight back out, so nothing it burns ever touches the air inside. You can shut every window on a February night and sleep through it.
It’s a direct-discharge furnace too, so the warm air comes out the front grille instead of going off through ducting. Less to route, and less to go wrong later.
What It Costs
The InstaHeat 20K Compact RV Furnace starts at $799.99, down from its usual $999.99, though the vent pipe you pick can nudge it up to $823.99 at the long end. First-time buyers can also knock another $50 off with the code New50.
Don’t spend a whole Saturday reworking the hole for your furnace, just get something that fits the first time.
