What is the SEER2 rating of the VillaTherm VHPSD-UCHA-36HDCSN?

The VillaTherm VHPSD-UCHA-36HDCSN is rated at up to 18.0 SEER2 and 11.0 EER2 for cooling and up to 9.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.

Is the VillaTherm VHPSD-UCHA-36HDCSN good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 26,000 BTU/h at 5°F with a COP of 2.10, so it is still 2.1 times as efficient as electric resistance heat at that temperature.

How much does the VillaTherm VHPSD-UCHA-36HDCSN cost to run per year?

At its rated efficiency it costs about $893-$2,398 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,102 in Phoenix and $2,004 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.

Is the VillaTherm VHPSD-UCHA-36HDCSN the same as the MDX MCHA-36HDCSO2?

Yes, as far as the certified ratings go. ENERGY STAR lists both model numbers with identical efficiency, capacity and matchups, which means the same outdoor unit sold under a different brand or with a minor variant code (voltage, colour or region). The full list is on this page.

Which indoor units work with the VillaTherm VHPSD-UCHA-36HDCSN?

ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses VAH-UCHA-36SHDCALN2.

3-ton central heat pump · SIDE-DISCHARGE

VillaTherm VHPSD-UCHA-36HDCSN

Average cooling and heating efficiency for a 3-ton central heat pump, and certified for cold climates.

Ranks #111 of 302 3 ton central heat pumps for cooling efficiency, and costs about $1,002 a year to run in a mixed climate like Atlanta.

SEER2: 18.0 Cooling efficiency over a season
Average · beats 66%
HSPF2: 9.0 Heating efficiency over a season
Average · beats 54%
EER2: 11.0 Cooling efficiency on a 95°F day
Below average · beats 23%
Heat at 5°F: 26,000 BTU/h76% of its 47°F output
Average · beats 58%

A good fit if…

Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 26,000 BTU/h at 5°F.
You want steady temperatures and quiet running - the compressor varies its speed.

Think twice if…

Nothing stands out - its ratings have no weak spot for its class.

Calculate my running cost

Details

Specifications3 ton, R-32

General
Brand	VillaTherm
Also sold as	MDX
Outdoor unit model	VHPSD-UCHA-36HDCSN
Series	SIDE-DISCHARGE
Type	Central heat pump
Nominal size	3 ton
CompressorVariable-speed units run longer at low power	Continuously variable
Refrigerant	R-32
Connected (smart) capable	No
On the market since	August 26, 2026
Last certified	September 15, 2026
Cooling
SEER2Seasonal efficiency, higher is better	18.0 (range 18.0)
EER2Efficiency at 95°F outdoors	11.0
Cooling capacity	34,200 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	9.0
Capacity at 47°F	34,200 BTU/h
Capacity at 17°F	28,600 BTU/h
Capacity at 5°F	26,000 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	2.10
ENERGY STAR cold climate	Yes

Heating output as it gets colder76% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with VAH-UCHA-36SHDCALN2 at the standard test temperatures, in BTU/h:

Certified matchups1 indoor units

The same outdoor unit scores differently with each indoor unit. Ask your installer for the AHRI reference number of the exact system you are quoted.

Indoor unit	SEER2	EER2	HSPF2	Heat @5°F	AHRI ref.
VAH-UCHA-36SHDCALN2 · cold climate	18.0	11.0	9.0	26,000	218731835

Same unit, other model numbers1

These model numbers have exactly the same certified ratings and matchups as the VillaTherm VHPSD-UCHA-36HDCSN: the same equipment under another brand, or a variant code for voltage, colour or market. Everything on this page applies to them.

MDX MCHA-36HDCSO2

Yearly running cost in 10 large cities$893-$2,398

Phoenix, AZ$1,102/yr
Miami, FL$893/yr
Houston, TX$988/yr
Atlanta, GA$1,002/yr
Los Angeles, CA$976/yr
New York, NY$2,398/yr
Chicago, IL$1,947/yr
Denver, CO$1,619/yr
Seattle, WA$995/yr
Minneapolis, MN$2,004/yr

At each state's average electricity price and the city's typical heating and cooling hours.

Questions6

What is the SEER2 rating of the VillaTherm VHPSD-UCHA-36HDCSN?: The VillaTherm VHPSD-UCHA-36HDCSN is rated at up to 18.0 SEER2 and 11.0 EER2 for cooling and up to 9.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
Is the VillaTherm VHPSD-UCHA-36HDCSN good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 26,000 BTU/h at 5°F with a COP of 2.10, so it is still 2.1 times as efficient as electric resistance heat at that temperature.
How much does the VillaTherm VHPSD-UCHA-36HDCSN cost to run per year?: At its rated efficiency it costs about $893-$2,398 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,102 in Phoenix and $2,004 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
Is the VillaTherm VHPSD-UCHA-36HDCSN the same as the MDX MCHA-36HDCSO2?: Yes, as far as the certified ratings go. ENERGY STAR lists both model numbers with identical efficiency, capacity and matchups, which means the same outdoor unit sold under a different brand or with a minor variant code (voltage, colour or region). The full list is on this page.
Which indoor units work with the VillaTherm VHPSD-UCHA-36HDCSN?: ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses VAH-UCHA-36SHDCALN2.
What refrigerant does the VillaTherm VHPSD-UCHA-36HDCSN use?: It uses R-32.

Running cost and savings

Pre-filled with this model. Pick your city and what you heat with today; everything else is optional.

Heat pump $1,094/yrYou save $669/yrSee details ↓

1. Where you live

StateCityElectricity ¢ per kWh

Adjust heating and cooling hours

Filled in from your city's climate. Change them if you run the system much more or less than usual.

Cooling hours full-load hours per yearHeating hours full-load hours per year

2. The heat pump VillaTherm VHPSD-UCHA-36HDCSN

Find a model (fills in the ratings below)

SEER2 cooling efficiencyHSPF2 heating efficiencyCooling capacity BTU/hHeating capacity BTU/h

3. What it replaces

Current heatingFurnace efficiency (AFUE %)Gas price, $/thermCurrent coolingOld AC rating SEER2 (10 ≈ 15+ years old)

4. Price replace the example with your quote

Installed price, $Rebates and incentives, $ utility, state

Heat pump, per year: $1,094
Current system, per year: $1,763
You save per year: $669
Payback: 19.4 years
Net after 10 years: -$6,310

Cooling $669Heating $426Electricity used: 6,840 kWhSaved vs. a minimum-efficiency heat pump: $258

Estimates use the unit's rated SEER2 and HSPF2, full-load hours derived from NOAA 1991-2020 degree days, average residential electricity prices from the U.S. EIA (12 months to July 2026) and fuel prices from EIA (2025 for natural gas, week of 2026-10-05 for propane and heating oil). Very cold days that need backup heat are not modelled. Federal minimum for comparison: 14.3 SEER2 / 7.5 HSPF2.

Similar 3 ton models

UTL UCHA-36HDCSN4 · cold climate18.0 SEER2 · 9.0 HSPF2
UTL UCHA-36HDCSN2 · cold climate18.0 SEER2 · 9.0 HSPF2
American Standard 4A6L9036A118.0 SEER2 · 8.7 HSPF2
Tempstar Q5H9V36*K*AAA · cold climate18.0 SEER2 · 9.0 HSPF2
Trane 4TWL9036A118.0 SEER2 · 8.7 HSPF2
Heil N5H9V36*K*AAA · cold climate18.0 SEER2 · 9.0 HSPF2
American Standard 4A6V8X36A118.0 SEER2 · 8.5 HSPF2
Carrier 27VPA936A*030 · cold climate18.0 SEER2 · 9.0 HSPF2

See all 302 3 ton central heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of September 15, 2026. How we use the data.