VEVOR CY-32 8KW Diesel Heater: features, specs and who it suits

The VEVOR CY-32 is an all-in-one diesel air heater rated at 8kW. It is made for spaces such as RVs, trucks, vans, boats and trailers, where a small unit burns diesel to warm the cabin air. Here is what its specs mean and what to think about before fitting one.

How a diesel air heater works

A diesel air heater draws a small amount of fuel from a tank, burns it in a sealed chamber and passes cabin air over the hot exchanger. The exhaust is vented outside through a pipe, so the combustion gases stay separate from the air you breathe. VEVOR says the CY-32 uses a ceramic igniter for quick starts in cold weather, and quotes a combustion efficiency of 90% or more.

The unit is rated for 12V to 24V DC, so it can run from the battery system of a car, truck, RV or boat. VEVOR gives a suitable area of 161 to 215 square feet (roughly 15 to 20 square metres).

Fuel use and tank

VEVOR lists a fuel consumption of 0.18 to 0.36 litres per hour, and says that works out to about one gallon for a night's use. The tank holds 5 litres (1.3 gallons). As a rough guide, the heater burns at the low end of that range when it is holding a steady temperature and at the high end when it is heating hard, so real use depends on the weather and the space. A fuel gauge is built in so you can see when to refill, and the fuel cap is described as leak-proof for travel on rough roads.

Remote control and display

The heater comes with a remote control that VEVOR says works at up to 98 feet (30 metres), so you can start it from outside the vehicle and warm the cabin before you get in. A colour digital display on the unit shows the settings, and the temperature can be adjusted between 32°F and 104°F (0°C to 40°C). The heater also announces its status by voice, which some people find helpful when they are setting it up in the dark.

Noise, exhaust and altitude

VEVOR describes the heater as low-noise, helped by a precision fuel pump. A diesel heater typically makes some pump ticking and a fan sound, so it is worth thinking about where it sits relative to the bed or seats. The exhaust pipe has a heat-insulated shield intended to reduce the risk of burns. For altitude, the listing says it works effectively below 9,843 feet (about 3,000 metres).

Who it suits

It suits people who want to heat a van, camper, truck cab, boat cabin or small trailer without running the engine. It is sized for small enclosed spaces rather than whole houses or large workshops.

What to check before you buy

• Space and insulation: compare the 161 to 215 square foot figure with your space, and remember that poorly insulated spaces lose heat faster.
• Power supply: confirm that your battery or power system is 12V or 24V and can supply the starting current the manual describes.
• Installation: the exhaust must be routed outside and fuel lines fitted as the manual shows. Follow local codes and the manual, and fit a carbon monoxide alarm in any sleeping area.
• Mounting spot: check that the 16.3 x 7.1 x 16.1 inch body (about 18 lb) has room, with clearance for air intake and exhaust.
• Fuel and upkeep: you will need diesel and a plan for periodic cleaning and spare parts, as the manual outlines.
• Altitude: if you travel above 9,843 feet, check how the heater behaves in the manual.

The short version

• An all-in-one 8kW diesel air heater (model CY-32) for 12V and 24V systems.
• Rated for 161 to 215 square feet, with fuel use of 0.18 to 0.36 litres per hour and a 5-litre tank.
• Remote control with a quoted 98-foot range, colour display and voice announcements.
• Heat-insulated exhaust shield, fuel gauge and leak-proof cap.
• Works below 9,843 feet, and needs proper exhaust routing and ventilation.

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