Best Space Heaters · head-to-head

De'Longhi EW7707CM ComfortTemp vs Heat Storm HS-1500-PHX Phoenix

A sourced, side-by-side comparison. De'Longhi EW7707CM ComfortTemp is cheaper at $129.95. Every spec and price links to its source.

Which is better: the De'Longhi EW7707CM ComfortTemp or Heat Storm HS-1500-PHX Phoenix?

On the specs we track, they're closely matched. The De'Longhi EW7707CM ComfortTemp is the cheaper at $129.95.

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Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec De'Longhi EW7707CM ComfortTemp Heat Storm HS-1500-PHX Phoenix
US price $129.95 $139.99 MSRP; non-WiFi floor/wall model
BrandDe'LonghiHeat Storm
Released2006
Type oil_filled infrared
Max wattage (W) 1500 1500
Coverage (sq ft) 150 150
Heat settings 3 3
Thermostat Yes Yes
Oscillation No No
Tip over protection Yes Yes
Release 2006

Sources — De'Longhi EW7707CM ComfortTemp: amazon.com (verified 2026-06-19). Heat Storm HS-1500-PHX Phoenix: heatstorm.com (verified 2026-06-19).

What's the difference between the De'Longhi EW7707CM ComfortTemp and Heat Storm HS-1500-PHX Phoenix?

Where the two actually differ on the specs we track (1 of 7). Matching specs are omitted.

  • Type: De'Longhi EW7707CM ComfortTemp oil_filled vs Heat Storm HS-1500-PHX Phoenix infrared

What reviewers say

Sourced tester consensus for each — the "what people who used it think" layer, not just specs.

De'Longhi EW7707CM ComfortTemp

Reviewed (USA Today) is the only whitelisted tester with a hands-on lab result for this exact model. The same lab test (tester Jon Chan) appears in its US edition (°F) and Canada edition (°C). It measured a modest max output (~83°F / ~28°C) and only a 3-degree room-temperature rise over an hour, ranking the EW7707CM best for basements and keeping pipes above freezing but 'not very powerful' as a personal heater. (2 sourced reviews, 2 lab-tested.)

Praised: Energy-efficient; best pick for basements and keeping pipes above freezing; Called a solid performer in lab testing.

Flagged: Not very powerful as a personal/spot heater — raised the room only ~3 degrees in an hour; Low max output (~83°F / ~28°C); not as good a personal heater as the DeLonghi HMP1500 (ranked 3rd in the Canada test).

Heat Storm HS-1500-PHX Phoenix

No sourced tester review yet.

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