This heater protects your critical equipment from freezing in your RV or boat. It keeps those mid-size spaces at the right temp with an automatic thermostat. And the quick-release bracket lets you install or remove the heater when the seasons change.
Water lines split open when they freeze. Batteries lose charge faster in the cold. Engines, pumps, and other critical systems might not survive those nights that fall below zero. That's exactly what this heater was built to prevent. At 600 watts, it has the power to keep medium-sized RV basements and boat engine compartments above freezing, and the forced-air design pushes heat into the corners where damage usually starts.
This kit includes a quick-release bracket, designed for RVs and boats where seasonal swaps matter. Instead of unbolting the heater in the spring, just pull the latch to release it and stow it away. When cold weather returns, drop it back into the bracket and it secures in place. The anodized aluminum bracket resists corrosion, so it can stay mounted all year without worry. Plus, the heater itself comes with a 15' marine-rated cord with a standard plug attached, so you've got some length to place it where you need (and you don't need to hardwire anything).
You have better things to do than sit there watching a gauge. That's why the thermostat is fixed to switch on at 40ºF and shut down at 55ºF, which is the range that keeps your plumbing, batteries, and tanks safe. It's high enough to stop freeze damage, but it doesn't waste energy making it warmer than you need.
Putting any electrical gear in an enclosed space can make people cautious, especially around fuel. This unit is ignition-protected, which means it's been tested to make sure it won't ignite fuel vapors in engine compartments or bays. For boaters, that's critical for safety when mounting in the bilge. For RV owners, it means reliable operation even in tight spaces where safety standards really matter.
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What stands out on the Xtreme Heaters 600-watt RV Basement and Boat Bilge Heater with Quick-Release Bracket (XH77FR) is how it fits right in between the small and large models, making it a solid choice for mid-size RV basements or boats up to about 28 feet. The quick-release bracket keeps seasonal swaps simple, since the mount stays in place and the heater slides in or out without tools. Once installed, the thermostat handles the cycling, and the forced-air fan pushes warmth evenly so medium compartments don’t end up with cold corners that cause freeze damage. The ignition-protected, anodized body holds up in enclosed or damp spaces, and the 15-foot marine-grade cord makes it easy to set up without hardwiring. For customers who feel the 400-watt might not keep up but the 800-watt is more than they need, this 600-watt size is the balanced option.
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