Dr Infrared Heater DR-239
#3 in ElectricFull review
For a patio or garage door area with a 240 V outlet where a 1,500 W heater falls short. Good value for 3,000 W.
Amazon $293.20$293.20
The Dr Infrared Heater DR-239 is the better patio heater overall, rated 3.7 to 3.1. The Dr Infrared Heater DR-239 leads on heat output and value. The SereneLife SLOHT42 Infrared Heater costs $64.21 less ($228.99 vs $293.20).
SereneLife SLOHT42 Infrared Heater
#11 in ElectricFull review
A standing infrared heater for a covered patio with kids or pets around. Its water rating is unclear, so keep it out of the rain.
Amazon $228.99$228.99
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Dr Infrared Heater DR-239 for heat output (3,000 W vs 1,500 W) and value ($28.64 per 1,000 BTU/h ($293.20, 10,240 BTU/h) vs $44.74 per 1,000 BTU/h ($228.99, 5,120 BTU/h)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every electric patio heater; a clear win is highlighted. How we rank explains each one.
| Factor weight | Dr Infrared Heater DR-239 | SereneLife SLOHT42 Infrared Heater |
|---|---|---|
| Overall rating | 3.7/5 | 3.1/5 |
| Value 35% | 49 $28.64 per 1,000 BTU/h ($293.20, 10,240 BTU/h) | 28 $44.74 per 1,000 BTU/h ($228.99, 5,120 BTU/h) |
| Heat output 25% | 100 3,000 W | 25 1,500 W |
| Safety 20% | 100 mounted, so it can't tip, safety listed | 100 tip-over shutoff, safety listed |
| Warranty 20% | 0 1-year warranty | 50 warranty not published (neutral score used) |
Specifications
| Dr Infrared Heater DR-239 | SereneLife SLOHT42 Infrared Heater | |
|---|---|---|
| Heating | ||
| Fuel | Electric | Electric |
| Power | 3,000 W | 1,500 W |
| Remote | Yes | Yes |
| Safety and build | ||
| Style | Wall | Standing |
| Tip-over shutoff | - | Yes |
| Safety listed | Yes | Yes |
| Ingress rating | IP55 | - |
| Weight | 7.6 lb | 21.6 lb |
| Warranty | 1 year | - |
| Released | - | 2024-05-20 |