Suburban SF-42VHFQ
For a 40,000 BTU furnace in an RV with no exterior door and a long duct run.
Amazon $1,185.98$1,185.98
3.4/5
The ducted version of the Fogatti 35,000 BTU furnace.
- 35,000 BTUInput
- 320 CFMAirflow
- DuctedDischarge
Check price at Amazon$699.99
Price checked November 3, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Ducted, compatible with most RV furnace dimensions
- Variable output to 17,000 BTU
Cons
- No published amp draw or warranty
- Another listing of the same model sells for $799.99
The Fogatti RV Furnace family
Every Fogatti RV Furnace model we rank, smallest first. Ratings compare each against its own size.
| Model | Input | Rating | Price |
|---|---|---|---|
| Fogatti RF02580N 25,000 BTU | 25,000 BTU | 3.0/5 | $699.99 |
| Fogatti RF030A0N 30,000 BTU | 30,000 BTU | 3.3/5 | $679.99 |
| Fogatti RF035A0N 35,000 BTU | 35,000 BTU | 3.4/5 | $699.99 |
| Fogatti RF035AR 35,000 BTU (this one) | 35,000 BTU | 3.4/5 | $699.99 |
How it scores
The rating comes from 3 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | RF035AR |
|---|---|
| Heat and power | |
| Input capacity | 35,000 BTU |
| Airflow | 320 CFM |
| Discharge | Ducted |
| Fit | |
| Height | 8 in |
Alternatives in this size
Fogatti RF035A0N 35,000 BTU
A low-priced 35,000 BTU furnace with variable output for a cold-weather trailer.
Amazon $699.99$699.99
Suburban SF-35VHFQ (2587A)
For a 35,000 BTU swap where the RV has no exterior furnace door.
Amazon $1,230.63$1,230.63
Compare
Compare the Fogatti RF035AR 35,000 BTU with any other RV furnace →
More from Fogatti: every Fogatti product ranked.