Rank #10 in Best Diesel Heaters 2026: 10 Ranked, and Why the kW Claims Don't Add Up
LF Bros 2 kW Diesel Heater, 12V, Compact
- Rating
- 4.4
- Ratings
- 21
- Rank
- #10
Price and rating as shown on Amazon when we collected them. Both change.
LF Bros' ER2.0 is a 12V diesel air heater for vehicle cabins — cars, motorhomes, caravans, boats, campervans. It costs £209.98, is rated 4.4 out of 5, and sits at number 10 in this guide, the last place on the list. It earns that position with the smallest claimed output here: 2 kW, against the 5 kW and 8 kW units above it.
Its own listing is where things stop adding up. The same page calls it a 2 kW heater and then lists "Wattage: 1100 watts", so the advertised heat output is just under twice the electrical figure in the spec table. The bullet describes a casing of 34.5 x 11 x 11.5 cm; the spec table describes 33.5 x 11.9 x 11.6 cm. The rating is 4.4, carried by 21 ratings on the page, while the vote breakdown supplied with this listing adds up to 100 votes at the same 4.4 average. Every figure on this page comes from the Amazon listing as it stands — we have not tested this heater.
How those 21 ratings break down
An average hides its own shape. This is the spread behind the 4.4 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Price | £209.98 |
|---|---|
| Rating | 4.4 out of 5, 21 ratings (as listed) |
| Claimed heat output | 2 Kilowatts, appearing under the heading "Cooling Power" (as listed) |
| Wattage | 1100 watts (as listed) |
| Fuel consumption | 0.12–0.21 L/H |
| Dimensions in the bullet | 34.5 x 11 x 11.5 cm |
| Dimensions in the spec table | 33.5 D x 11.9 W x 11.6 H cm |
| Installation type | Window (as listed) |
What it is up against
The rivals it was ranked against in Best Diesel Heaters 2026: 10 Ranked, and Why the kW Claims Don't Add Up.
Questions people ask
How much heat does the LF Bros ER2.0 produce?
The listing calls it a 2 kW diesel heater and repeats "2 Kilowatts" in the specification table, where it appears under the heading "Cooling Power".
Why does the specification table say 1100 watts?
We cannot tell you — that is what LF Bros has published for this model. The same page describes a 2 Kilowatt heater, so the two figures do not match.
What size is it?
Two sizes are given. The bullet says 34.5 x 11 x 11.5 cm; the specification table says 33.5 cm deep, 11.9 cm wide and 11.6 cm high.
How much diesel does it use?
LF Bros quotes 0.12 to 0.21 litres per hour.
What can it be fitted to?
The listing names cars, motorhomes, caravans, boats and campervans. Its specification table also shows "Installation Type: Window", which is an air-conditioning field rather than a diesel heater one.
Can you set it to come on later?
Yes. The T3 LCD display has a timer, set with the "Time" button, that schedules heating from 1 to 24 hours ahead.
Comments
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