- Is this heater safe to leave on overnight?
- It is an oil-filled radiator with no exposed heating element and no fan, and it is designed for long runs. The surface still gets hot, so keep it clear of curtains and furniture and away from children.
- Does it need oil refilling?
- No. The diathermic oil is sealed inside the fins for the life of the unit, so there is nothing to top up and no filter to clean.
- How large a room can it heat?
- At 2,000 W it is intended as a room heater for a medium-sized bedroom or living room, not a whole home. In a large or poorly insulated space it works best as supplemental heat.
- Can I control it from my phone?
- No. This model has no Wi-Fi, app or smart-home support; you set heat with the controls on the unit.
- How is it different from a fan heater?
- It warms up more slowly and is heavier, but it runs silently, does not blow dust around and keeps radiating heat after you switch it off.
- Does it come with a timer?
- This model uses simple mechanical controls without a programmable timer or weekly schedule. For scheduling, look at De'Longhi's smart oil radiator models.
- Where is the De'Longhi TRD40615T Radiant Heater cheapest?
- At DeLonghi, for $159.95, as of our latest check.