Draper Garage Heater Review
Draper offers a range of electric, gas, and diesel garage heaters designed for workshops and home garages. This review examines the key models, their specifications, and how they stack up against the competition to help you find the right fit.
Quick answer
For most home garages, the Draper 2kW Oil Filled Radiator is the best pick for quiet, consistent warmth. For larger workshops, the Draper 5.5kW Diesel Heater offers the highest heat output, but requires ventilation. The Draper 3kW Fan Heater is the best budget-friendly option for quick spot heating.
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Research updated June 2026.
Draper 2kW Oil Filled Radiator
Quiet, safe, and efficient for all-day use in a single-car garage.
Pros
- Silent operation, ideal for overnight use
- No exposed heating elements, safer for dusty garages
- Thermostat and multiple heat settings
Cons
- Slow to heat up compared to fan heaters
- Heavy and less portable
Who is the Draper Garage Heater For?
Draper garage heaters are designed for DIY enthusiasts, hobbyists, and professionals who need to keep their workspace warm during colder months. The range covers small home garages up to large commercial workshops. The oil-filled models are best for those who prioritize quiet, consistent heat and safety, while the fan heaters suit users needing fast, targeted warmth. The diesel models are for larger, well-ventilated spaces where high output is essential.
Performance and Heat Output
The Draper 2kW Oil Filled Radiator provides steady, radiant heat without the noise of a fan. Owner reviews on retailer sites note that it effectively warms a single-car garage (around 15-20m²) to a comfortable working temperature in about 20-30 minutes. The 3kW Fan Heater, by contrast, heats up a similar space in under 5 minutes, but it is louder and can cause dust to circulate. The 5.5kW Diesel Heater is a forced-air unit that delivers intense heat quickly, but it requires a flue or adequate ventilation and is significantly louder.
Build Quality and Safety
Draper heaters generally feature robust steel construction. The oil-filled models include tip-over switches and thermal cutouts, which are important for garage environments where the heater might be knocked. The fan heaters use a metal casing and a safety grille. Some owner reviews mention that the plastic control knobs on the fan heater feel less durable than the rest of the unit. The diesel heater has a stainless steel combustion chamber, but its long-term reliability depends on regular maintenance like cleaning the fuel filter.
Alternatives to Consider
If you need a heater for a very small space, a 1.5kW fan heater from Sealey might be cheaper and lighter. For larger workshops, a 10kW diesel heater from Clarke offers more output, but at a higher cost and size. If you prefer an electric option with more precise temperature control, a 2kW infrared heater from Wagner could be a quieter alternative to the oil-filled radiator. For those who want a heater that also provides light, a 2kW halogen heater from Stanley is a dual-purpose option.
FAQs
Can I leave a Draper oil filled heater on overnight in my garage?
It is not recommended to leave any heater unattended overnight. Always follow the manufacturer's safety instructions and ensure the heater is on a stable, non-flammable surface.
Do Draper diesel heaters need ventilation?
Yes, all diesel and gas heaters require adequate ventilation to prevent carbon monoxide buildup. Never use them in an enclosed space without a flue or open door.
Which Draper heater is best for a 2-car garage?
For a 2-car garage (around 30-40m²), the Draper 3kW Fan Heater or the 5.5kW Diesel Heater are better suited. The oil filled 2kW model will struggle to heat a larger space efficiently.
Are Draper heaters energy efficient?
Electric heaters are 100% efficient at converting electricity to heat, but running costs depend on your electricity tariff. Diesel heaters are more fuel-efficient for large spaces but require fuel purchase.
How noisy is the Draper 3kW fan heater?
Owner reviews describe it as moderately loud, similar to a hairdryer on a medium setting. It is noticeable but not disruptive for most workshop tasks.
What is the warranty on Draper heaters?
Most Draper heaters come with a 1-year warranty. Some models may have a 2-year warranty if registered online. Check the specific product page for details.
Can I use a Draper heater in a damp garage?
Only use heaters rated for damp locations. Oil filled and fan heaters should be kept away from water sources. Diesel heaters produce dry heat but must be vented.
How do I clean a Draper oil filled radiator?
Wipe the exterior with a dry cloth. Do not use water or cleaning agents. Ensure the heater is unplugged and cool before cleaning.
Is the Draper diesel heater easy to install?
Installation requires mounting the unit, connecting a fuel line, and installing a flue. It is not a plug-and-play device and may require professional installation.
What size fuse does a Draper 2kW heater need?
A 2kW heater typically requires a 13A fuse in a UK plug. Always check the manufacturer's instructions for the correct fuse rating.
Our verdict
For most home garages, the Draper 2kW Oil Filled Radiator is the best overall choice for quiet, safe, and consistent heat. If you need fast heat on a budget, the Draper 3kW Fan Heater is a solid alternative. For large workshops, the 5.5kW Diesel Heater offers the highest output, but requires careful ventilation and maintenance.