Any order before 4 PM EST M-F is shipped that day!

1.877.360.4328

Your cart is empty

Continue shopping
Shop RVs & Campers Boats Living Space Industrial All Products RVs & Campers Shop Why Xtreme Heaters? Benefits and Features Installation RV & Camper Heaters RV Lithium Batteries RV Skirting RV Basement Heating Manual Boats Shop Why Xtreme Heaters? Benefits and Features Installation Installation & Care Installation Ski & Wake Installation Cruisers Installation Houseboats Installation Out Board Motor Manual Industrial Shop Why Xtreme Heaters? Benefits and Features Uses for the Industrial Heater Manual Support & Technical Warranty & Heater Registration Service Form Manuals FAQ Testing Your Heater Certifications Certifications Tested to IP68 standards Tested to Ignition Protection standards MIL-SPEC testing Technical Specifications Electrical Requirements Safety Freeze & Fire Prevention Boating Horror Stories Testing Quick Release Bracket About Us Blog Testimonials Join Xtreme Affiliate Sign up Become a Dealer Contact Us Terms & Conditions Shop RVs & Campers Boats Living Space Industrial All Products RVs & Campers Shop Why Xtreme Heaters? Benefits and Features Installation RV & Camper Heaters RV Lithium Batteries RV Skirting RV Basement Heating Manual Boats Shop Why Xtreme Heaters? Benefits and Features Installation Installation & Care Installation Ski & Wake Installation Cruisers Installation Houseboats Installation Out Board Motor Manual Industrial Shop Why Xtreme Heaters? Benefits and Features Uses for the Industrial Heater Manual Support & Technical Warranty & Heater Registration Service Form Manuals FAQ Testing Your Heater Certifications Certifications Tested to IP68 standards Tested to Ignition Protection standards MIL-SPEC testing Technical Specifications Electrical Requirements Safety Freeze & Fire Prevention Boating Horror Stories Testing Quick Release Bracket About Us Blog Testimonials Join Xtreme Affiliate Sign up Become a Dealer Contact Us Terms & Conditions

BUILT to be the BEST Period! American Owned

air inlet with fan 800w heater Xtreme-Heater-Exit-End-Photo Large Xtreme Heaters Boat Bilge and RV Heater Indicator light system with color-coded labels for green, red, and yellow on a blue background. Xtreme-Heaters-Features three prongs plug on the power cord for xtreme heaters mounting screws for xtreme heaters Marine-grade bundle of single 800W Xtreme boat heater and quick release mount, ensuring reliable performance in humid environments. Close-up of large 800W Xtreme boat heater bundle with low-profile quick release bracket, ideal for marine winterization in tight spaces. Xtreme-Heater-weight-and-dimensions camper heater for small campers
Xtreme Heaters 5 Year Warranty rv heaters Winter-Camping-in-and-RV-with-Xtreme-Heaters camper heater for winterizing water 
tanks rv water heater install
2 Pack Xtreme Heaters Large  800W XXXHEAT RV & Camper Heater 2 Pack Xtreme Heaters Large  800W XXXHEAT RV & Camper Heater air inlet with fan 800w heater Xtreme-Heater-Exit-End-Photo Large Xtreme Heaters Boat Bilge and RV Heater Indicator light system with color-coded labels for green, red, and yellow on a blue background. Xtreme-Heaters-Features three prongs plug on the power cord for xtreme heaters mounting screws for xtreme heaters Marine-grade bundle of single 800W Xtreme boat heater and quick release mount, ensuring reliable performance in humid environments. Close-up of large 800W Xtreme boat heater bundle with low-profile quick release bracket, ideal for marine winterization in tight spaces. Xtreme-Heater-weight-and-dimensions camper heater for small campers
2 Pack Xtreme Heaters Large  800W XXXHEAT RV & Camper Heater Xtreme Heaters 5 Year Warranty rv heaters Winter-Camping-in-and-RV-with-Xtreme-Heaters camper heater for winterizing water 
tanks rv water heater install

2 Pack Xtreme Heaters Large 800W XXXHEAT RV & Camper Heater

$844.20 USD
$844.20 USD
Shipping calculated at checkout.

SKU:

Large 800w Heater Heater + Large Quick Release Heater+LargeQuickRelease+Freeze Spray
Add to cart Buy Now

About this Heater

Save with a 2 pack of the large 800w Xtreme heaters 

Looking for a reliable heating solution for your RV? Look no further than the Xtreme Heaters Large 800W XXXHEAT RV Heater. With its durable design, this heater will protect your assets, providing you with long-lasting warmth and comfort during your travels. Say goodbye to cold nights and hello to cozy camping with the Xtreme Heaters RV Heater. The Xtreme Heaters Large 800W XXXHEAT RV and Camper Heater is perfect for large compartments and skirted RVs. Some skirted may need to use 2 heaters depending on how airtight or low temps or smaller compartments in Extreme conditions.

  • True Forced Air Heating circulates air more effectively and heats more evenly for more accurate temperature control.
  • Mounting orientation flexibility: Horizontal or vertical installation supported, even upside down.
  • Automatic Thermostat turns the heater on at 40°F and off at 55°F (+/- 3°F) for tight, reliable control.
  • Failsafe Design cannot overheat; the heating technology is dynamic and self-regulating.
  • High Efficiency produces heat faster, circulates more air, and shuts off earlier to save energy.
  • Pre-wired 15 ft marine-rated power cord with a 110V 3-prong plug for plug-and-play installation. No hardwiring required.
  • Maximum Life: Designed for durability and reliability in harsh environments.
  • Corrosion protection: Fully anodized inside and out to resist corrosion in wet and salt-air conditions.
  • Mounting hardware included: Stainless Phillips head screws.
  • Energy note: thermostatically controlled can reduce energy use up to 75% compared to continuous-run heaters.
  • Certified and independently tested.
  • IP68 rated: The assembly is sealed for rugged use—resists dust and moisture exposure in dirty, damp conditions and handles wet, harsh environments without failing.
  • Ignition protected: Tested to U.S. Coast Guard standards (USCG 33 CFR 183.410) and SAE J1171.
  • Mil-Spec tested: MIL-STD-810E Method 514.4 for vibration, humidity, and high/low temperatures.
  • 5-year warranty (best in the business), backed by U.S.-based support.
  • Built for freeze protection in compartments, enclosures, wet bays, rv skirting and utility bays.

As product and industry experts, our goal for the Xtreme Heater was to produce a highly safe, dependable, and efficient option on the market. 

SHOP SMALL HEATER HERE ( Small camper & RV compartments )
SHOP MEDIUM HEATER HERE (camper & RV medium sized compartments)

Owners Manual click here 

Specifications

  • Wattage: 800W
  • BTU: 2729.7
  • Inrush (startup) current: 13.5A, 1 sec.
  • Typical operating current: 6.8A
  • Fan flow 58CFM
  • 69.2 Db 
  • IP68 (Waterproof) rated Fan
  • MTBF for fan: 40,000
  • Heater Dimensions: 8″ x 3.5″ x 5 1/8″
  • Box packaged Dimensions 12″ x 6″ x 6″
  • Fuse or breaker size required 20A
  • 15ft marine rated power cord
  • UPC-895670001262

Suitable for boats up to 35′ Length