Suburban SF-42VHQ (2592A)
For big fifth wheels and motorhomes that need a single large furnace.
Amazon $1,138.76$1,138.76
The Suburban SF-42VHQ (2592A) is the better RV furnace overall, rated 3.5 to 3.4. The Fogatti RF035A0N 35,000 BTU wins on value. The Fogatti RF035A0N 35,000 BTU costs $438.77 less ($699.99 vs $1,138.76).
Prices were last checked November 4, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
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
Which should you buy?
- Choose the Fogatti RF035A0N 35,000 BTU for value ($20 per 1,000 BTU ($699.99, 35,000 BTU) vs $28.47 per 1,000 BTU ($1,138.76, 40,000 BTU)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 35,000 BTU and up RV furnace; a clear win is highlighted. How we rank explains each one.
| Factor weight | Suburban SF-42VHQ (2592A) | Fogatti RF035A0N 35,000 BTU |
|---|---|---|
| Overall rating | 3.5/5 | 3.4/5 |
| Value 40% | 64 $28.47 per 1,000 BTU ($1,138.76, 40,000 BTU) | 92 $20 per 1,000 BTU ($699.99, 35,000 BTU) |
| Power draw 35% | 54 9 A running, 0.2 A per 1,000 BTU | 50 12 V amp draw not published (neutral score used) |
| Warranty 25% | 50 2-year warranty | 0 warranty not published, scored as none |
Specifications
| Suburban SF-42VHQ (2592A) | Fogatti RF035A0N 35,000 BTU | |
|---|---|---|
| Heat and power | ||
| Input capacity | 40,000 BTU | 35,000 BTU |
| 12 V amp draw | 9 A | - |
| Airflow | - | 320 CFM |
| Discharge | Ducted | - |
| Fit | ||
| Height | 7.5 in | 7.9 in |
| Weight | 35.6 lb | - |
| Warranty | ||
| Warranty | 2 years | - |