What size heat pump or AC do I need for 1,800 Sq Ft in Arizona?

A 1,800 Sq Ft home in Arizona (1400 HDD / 3800 CDD) typically requires 3.0 Tons (36,000 BTU) of heating and cooling capacity, depending on insulation quality and ceiling height.

What is the average monthly heating and cooling bill for 1,800 Sq Ft in Arizona?

At Arizona's utility rate of 15.4¢/kWh, a 1,800 Sq Ft home averages $31/month ($376/yr) with a heat pump, $37/month ($445/yr) with natural gas, and $73/month ($878/yr) with electric baseboards.

Cost to Heat & Cool a 1,800 Sq Ft Home in Arizona (2026 Bill & BTU Size)

2026 Monthly & Annual Utility Breakdown (1,800 Sq Ft in Arizona)

Recommended Equipment Size:3.0 Tons (36,000 BTU)

Arizona Residential Electricity / Gas Rate:15.4¢/kWh | $1.55/therm

Cold-Climate Heat Pump (15-Yr Lifespan):$376/yr ($31/mo)

Winter Heating vs. Summer Cooling Split (Heat Pump):$154/yr Heat | $222/yr AC

Natural Gas Furnace + Central AC (18-Yr Lifespan):$445/yr ($37/mo)

Electric Baseboard + Window AC (25-Yr Lifespan):$878/yr ($73/mo)

15-Year Heat Pump Lifespan Net Savings vs. Baseboard:+$3,930

Customize Insulation, Solar & View 20-Year Lifespan Graph →

💰 Up to $2,600 Rebate

Compare 3 Local Arizona HVAC Installer Quotes

Verify 2026 Federal 25C Tax Credit & APS / Salt River Project (SRP) rebate eligibility and compare turnkey contractor pricing for a 3.0-Ton system (1,800 sq ft).

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🛠️ Save 45% on Install

DIY Pre-Charged Ductless Mini-Split Kits

Avoid $3,500+ in ductwork labor. Calculate exact multi-zone mini-split BTU capacity for your 1,800 sq ft Arizona home.

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☀️ Offset 15.4¢/kWh

Arizona Solar + Heat Pump Net-Zero Calculator

See how an 80%–100% rooftop solar net-metering array eliminates annual electric heating and cooling bills in Arizona.

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Compare Other Home Sizes in Arizona

800 Sq Ft 1,000 Sq Ft 1,200 Sq Ft 1,500 Sq Ft 1,800 Sq Ft 2,000 Sq Ft 2,200 Sq Ft 2,500 Sq Ft 2,800 Sq Ft 3,000 Sq Ft 3,500 Sq Ft 4,000 Sq Ft