Can A Space Heater Protect My RV Fresh And Gray Water Tanks ?
Published 09/30/2025 >
Products Featured in This Question
Question:
Can I use the 800W heater to protect my RV’s fresh and gray tanks if the bays are separate?
asked by: Jennifer
Expert Reply:
Jennifer, the Xtreme heaters are built to protect enclosed compartments like pump bays, plumbing manifolds, and battery spaces -not the tanks themselves if they’re hanging exposed under the RV. Many travel trailers and fifth wheels have black and gray tanks suspended outside, and in that case you’d need tank heating pads instead of a compartment heater.
If your rig has an enclosed underbelly where all the tanks and plumbing are together in one large cavity, then the 800W # XH27FR would work just fine.
Product Page this Question was Asked From
Xtreme Heaters RV Basement and Boat Bilge Heater with Quick-Release Bracket - Large - 800 Watts
- RV Heaters
- Electric Heater
- 110 Volts
- Winterization
- 5th Wheel
- Motorhome
- Travel Trailer
- Xtreme Heaters
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: Xtreme Heaters RV Basement and Boat Bilge Heater with Quick-Release Bracket - Large - 800 Watts
- Shop: Xtreme Heaters RV Basement and Boat Bilge Heater - Small - 400 Watts
- Q&A: Replacement for Older Go Power PWM-30 Solar Controller
- Shop: Fastway e2 Weight Distribution w/ 2-Point Sway Control - Trunnion - 8,000 lbs GTW, 800 lbs TW
- Shop: Equal-i-zer Weight Dist Shank - 2-1/2" Hitch - 10" Rise/6" Drop
- Shop: Equal-i-zer Weight Dist Shank - 12" Long - 7" Rise, 3" Drop - 600 to 1,400 lbs TW
- Shop: Fastway e2 Weight Distribution Shank - 12" Long - 10-1/4" Rise, 5-1/2" Drop - 1.2K TW
- Shop: Equal-i-zer Weight Dist Shank - 12" Long - 8" Rise, 4" Drop - 600 to 1,400 lbs TW
- Video: Review of Camco Portable Grills and Fire Pits - Fire Pits - CAM58041
- Q&A: Will 800w Heater Work In RV Pass-Through Storage Bay To Keep Plumbing And Lithium Batteries Warm?
- Q&A: Replacement Toilet Base Seal for a Dometic 510 RV Toilet
- Q&A: Looking For Heater To Put Under RV During The Winter
- Q&A: How to Mount the Curt True Course Advanced Bluetooth Trailer Sway Control System
- Article: 30-Amp and 50-Amp RV Service: What's the Difference?
- Q&A: Can the Progressive Dynamics 4500 Series Charge a Lithium Battery Bank?
- Q&A: Replacement 16 Inch Wheel Recommendation for Lionshead Lynx Silver Wheel with 8 Lug Pattern
- Article: How to Measure for Travel Trailer and Fifth Wheel Steps
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Towing a Trailer? Let's Talk About Brake Controllers

