How an All-Electric Utah Home Stays Warm at -13°F
"All-electric" makes some Utahns nervous — won't it be cold, or expensive, when it drops below zero? Here's the honest building science: an Arena home stays warm through a Wasatch winter on cold-climate heat pumps rated to about -13°F, with no furnace, no gas line, and no mechanical room. And it usually costs less to run.
The old way: a gas furnace and a big tank
The traditional Utah home burns gas in a furnace, pushes heated air through ducts, and keeps a 50-gallon tank of water hot around the clock whether you use it or not. It works — but it means combustion inside your house, a mechanical room you paid to build and heat, and energy quietly wasted keeping water and air warm on standby.
How a cold-climate heat pump actually works
A heat pump doesn't make heat by burning something — it moves heat, the way a refrigerator does in reverse, pulling warmth from the outside air even when it's cold and delivering it inside. Modern cold-climate units keep doing this efficiently down to roughly -13°F, which covers the overwhelming majority of Wasatch Front winter hours. The same unit runs in reverse to cool in summer, so one quiet system handles the whole year.
Room-by-room control
Each zone sets its own temperature — no more heating empty bedrooms to keep the living room comfortable.
Heat and cool in one system
No separate furnace and AC to buy, service, and eventually replace — one efficient system does both.
No combustion in the house
No gas line, no flue, no carbon-monoxide risk, and no mechanical room eating square footage you paid for.
Instant hot water, on demand
Point-of-use heaters at each bath deliver hot water the moment you ask for it, instead of keeping a tank warm all day.
The catch: it only works in a house built for it
Here's what most "all-electric" retrofits get wrong. A heat pump is efficient, but it can't win against a leaky, poorly insulated shell — pour heat into a sieve and any system loses. That's why the Arena Standard is envelope-first: continuous exterior insulation with no thermal bridges and high-performance double-pane windows, all wrapping a cold-formed steel frame on waterproof MgO floors. The house holds the heat, so a modest heat pump keeps it comfortable — and an energy-recovery ventilator brings in fresh air without dumping the warmth you paid for.
What it means for your bill
A tight envelope plus efficient electric systems typically means lower monthly operating costs than a leaky home with a gas furnace and a standby tank — and a smart electrical panel that's ready for solar and a battery on day one, so the roof can eventually cover much of what's left. No gas bill, no mechanical room, and a home built to run itself.
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