Product reliability: Heating and ventilation
Our annual reliability survey reveals which heating and ventilation products are most reliable.
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About our survey
We asked our members about products they’d bought new since 1 January 2013. We wanted to know the brand, the year it was bought and whether it had ever needed repair. We also asked respondents if they were satisfied with their product. Our thanks to all who participated.
We only analyse brands that got 30 or more responses in a category. For each brand, we calculate our reliability score as the percentage of its products that have never needed repair. Satisfaction is the percent of owners who were “very satisfied” with their product (scored 8, 9 or 10 on a 0-10 scale).
Where we haven’t re-surveyed a particular product, we’ve included the reliability data from our 2016 and 2017 surveys.
Electric heaters
Total number surveyed: 1688
Reliability by brand
| Brand | Reliability[width=medium] | Satisfaction |
|---|---|---|
| Moretti (30) | 100% | 73% |
| Kent (90) | 99% | 84% |
| Evantair (98) | 97% | 70% |
| Dimplex (109) | 96% | 64% |
| DeLonghi (322) | 95% | 70% |
| AVERAGE | 93% | 65% |
| Goldair (527) | 91% | 59% |
| Dyson (90) | 90% | 72% |
| Necessities (31) | 89% | 45% |
| Celsius (39) | 87% | 54% |
| Living & Co (46) | 79% | 46% |
Reliability by type
| Type | Reliability[width=medium] | Satisfaction |
|---|---|---|
| Radiant (81) | 97% | 74% |
| Oil column (195) | 97% | 67% |
| Oil free column (29) | 96% | 69% |
| Micathermic (194) | 96% | 75% |
| Bathroom heater (120) | 94% | 63% |
| Convection (267) | 94% | 67% |
| Oscillating tower (208) | 93% | 66% |
| Fan (327) | 92% | 58% |
| Panel (235) | 86% | 56% |
Top problems
| Problem | Occurrence |
|---|---|
| Stopped working/won't turn on | 24% |
| Recalled | 20% |
| Controls not working | 18% |
| Heater producing less or no heat | 16% |
| Thermostat inaccurate/not working | 10% |
For more on finding the best electric heater, see our buying guide.
Dehumidifiers
Data is from our 2017 survey
Total number surveyed: 589
Reliability by brand
| Brand | Reliability[width=medium] | Satisfaction |
|---|---|---|
| Other (61) | 100% | 48% |
| Mitsubishi (94) | 99% | 79% |
| Suki (44) | 98% | 73% |
| Evantair (30) | 97% | 50% |
| AVERAGE | 96% | 67% |
| DeLonghi (221) | 95% | 67% |
| Goldair (107) | 94% | 70% |
| Dimplex (32) | 92% | 72% |
For more on finding the best dehumidifier, see our buying guide.
Electric blankets
Data is from our 2017 survey
Total number surveyed: 2285
Reliability by brand
| Brand | Reliability[width=medium] | Satisfaction |
|---|---|---|
| Breville (93) | 99% | 62% |
| Evantair (92) | 98% | 64% |
| Zip (385) | 98% | 68% |
| Homemaker (32) | 97% | 50% |
| Kambrook (51) | 95% | 65% |
| Goldair (441) | 94% | 67% |
| Necessities (46) | 93% | 52% |
| AVERAGE | 93% | 69% |
| Other (54) | 90% | 74% |
| Sunbeam (1091) | 90% | 72% |
For more on finding the best electric blanket, see our buying guide.
Heat pumps
Data is from our 2017 survey
Total number surveyed: 1833
Reliability by brand
| Brand | Reliability[width=medium] | Satisfaction |
|---|---|---|
| Mitsubishi Electric (445) | 95% | 75% |
| Panasonic (295) | 94% | 70% |
| Toshiba (75) | 93% | 71% |
| Fujitsu (498) | 93% | 75% |
| AVERAGE | 93% | 75% |
| Other (56) | 92% | 64% |
| Daikin (361) | 92% | 82% |
| Hitachi (50) | 87% | 60% |
| Mitsubishi Heavy Industries (53) | 84% | 77% |
For more on finding the best heat pump, see our buying guide.
Ventilation systems
Data is from our 2017 survey
Total number surveyed: 804
Reliability by brand
| Brand | Reliability[width=medium] | Satisfaction |
|---|---|---|
| Other (105) | 92% | 71% |
| DVS (137) | 88% | 60% |
| HRV (446) | 87% | 63% |
| AVERAGE | 86% | 63% |
| SmartVent (56) | 71% | 59% |
| moistureMASTER (60) | 69% | 60% |
For more on finding the best ventilation system, see our buying guide.
More from our survey
See which other products and brands our members rated as being reliable and satisfying to own.
