When temperatures drop, uptime and comfort take a hit. The Dometic ProHeat X30 is a compact diesel-fired coolant heater that pre-heats engines and delivers auxiliary cabin heat so equipment starts cleaner, operators stay warm, and fleets avoid costly cold-weather downtime. It’s built to adapt across vocational trucks, buses, off-highway equipment, RVs, and marine—wherever consistent heat and quick starts are mission-critical. Dometic
Why the X30 stands out
1) Big heat in a compact footprint
The X30 modulates output from ~15,000 to 31,000 BTU/hr, matching real-time system demand instead of blasting at one fixed level. That means faster warm-ups, steadier temps, and less waste. A single unit can heat both equipment systems (engine/coolant) and the passenger compartment, and it’s self-contained with an integrated coolant pump for straightforward plumbing. Rugged aluminum/steel construction is built for fleet life. Dometic
2) Cleaner, more consistent combustion
Cold starts, altitude changes, and fuel variability can cause sooting in older heaters. The X30’s closed-loop combustion control with an integrated O₂ sensor continuously tunes the burn for dependable performance—which helps keep the heater cleaner, longer, and improves day-to-day reliability. Dometic
3) Smart controls & easy integration
From 10–30 VDC (auto-select) to adaptive smart controls, the X30 is designed to drop into diverse electrical systems and “just work.” Add the ProHeat Smart Temperature Control for an operator-friendly display and multi-zone heating without overcomplicating the cab. Dometic+1
4) Cut unnecessary idling (and fuel burn)
Pre-heating coolant and maintaining cabin warmth with a small, efficient burner dramatically reduces the need to idle engines for heat. Pairing with an auxiliary power system can further extend runtime and cut idling—saving fuel and reducing wear. Amazon Web Services, Inc.
Key specs at a glance (what fleets care about)
Heat output: 10,000–31,000 BTU (2.9–9.1 kW)
Operating voltage: 10–30 VDC
Power consumption: ~90 W max
Fuel consumption: ~0.1–0.31 gal/hr (0.4–1.17 L/hr) depending on load
Coolant flow: ~3.0 gal/min (11.4 L/min)
Operating temp range: –40°F to 185°F (–40°C to 85°C)
Compatible fuels: Diesel (ULSD #1/#2/Arctic blends), K-1 kerosene, Jet A/A-1/JP-8, and biofuels up to B20
Weight: ~36 lb (heater), ~44 lb (with enclosure)
These real-world numbers help planners size the heater, forecast fuel burn, and plan mounting. BTRAC
Where the X30 shines
Buses & people-movers: Maintain passenger comfort and driver alertness while reducing pre-trip idling on cold starts. masstransitmag.com
Vocational trucks & off-highway equipment: Pre-heat engines and hydraulics for easier starts, faster deployment, and less cold-soak wear on components. (General use, supported by the core product page.) Dometic
Marine cabins & workboats: Deliver steady, variable heat in damp, challenging environments where compactness and reliability matter. Dometic
What this means for your operation
Fewer cold-weather delays: Pre-heated coolant = easier starts, less white smoke, quicker to work. Dometic
Lower total cost of ownership: Reduced idling and targeted heat cut fuel burn and engine hours. Amazon Web Services, Inc.
Operator comfort & retention: Warm cabs improve morale and safety on long winter shifts. (Use case supported by bus/people-mover references.) masstransitmag.com
Flexible installs: Multiple mounting points, integrated pump, and a wide input-voltage window simplify integration across mixed fleets. Dometic
Common questions we get at BTRAC
“Will it work with our fuel?”
Yes—beyond ULSD #1/#2 and Arctic blends, the X30 is compatible with K-1 kerosene, Jet A/A-1/JP-8, and up to B20 biodiesel, giving fleets flexibility in procurement and operations. BTRAC
“How much fuel will it use?”
Expect roughly 0.1–0.31 gal/hr depending on load and ambient temperatures—far less than idling a diesel engine for heat. BTRAC
“Can I control multiple zones?”
Yes. The ProHeat Smart Temperature Control enables intuitive, multi-zone heating with a clean, operator-friendly interface. Dometic
Ready to winterize your fleet?
BTRAC can help you spec, supply, and support the Dometic ProHeat X30, from component kits and controls to install guidance for trucks, buses, off-highway machines, RVs, and workboats. If you want to reduce idling, speed up cold starts, and keep crews warm without overspending on fuel, the X30 is a proven, flexible solution. Click here to buy your ProHeat X30.