Hydronic Systems

Daikin ALTHERMA

High-temperature air-to-water heat pump for
heating, cooling, and domestic hot water for your home.

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ALTHERMA Products

Daikin ALTHERMA 3 H HT - UPRA-DAVK

High temperature air-to-water heat pump for heating, cooling, and domestic hot water in all-climates.

01

Overview

  • Comfort
  • Efficiency
  • Technology
  • Indoor Air Quality

The Daikin ALTHERMA 3 H HT is an all‑electric heat pump that replaces conventional boilers and furnaces with a single system for heating, cooling, and hot water. It delivers high water temperatures up to 158°F and works reliably even in freezing weather. With quiet operation, energy‑saving inverter technology, and low‑impact R‑32 refrigerant, it offers a modern, efficient way to keep your whole home comfortable all year long.

02

Comfort

  • Overview
  • Efficiency
  • Technology
  • Indoor Air Quality

The Daikin ALTHERMA 3 H HT delivers reliable year‑round comfort with efficient heating, cooling, and hot water—even in low outdoor temperatures. Its easy “Plumb‑and‑Play” setup and compatibility with radiators, baseboards, in‑floor radiant systems, and heat pump convectors make it a flexible fit for almost any home. With outdoor sound levels as low as 35 dBA in low‑sound mode, it keeps both indoor and outdoor spaces peaceful and comfortable.

03

Efficiency

  • Overview
  • Comfort
  • Technology
  • Indoor Air Quality

The Daikin ALTHERMA 3 H HT is built for today’s energy‑smart homes, using advanced inverter technology and efficient R‑32 refrigerant to cut energy use and lower emissions. It performs even better at lower water temperatures, especially when paired with Daikin ALTHERMA Heat Pump Convectors. As a fully electric system, it helps homeowners move away from fossil‑fuel heating while still enjoying reliable, high‑quality comfort throughout the year.

  • COP: 4.86 (A45/W95) and 2.18 (A5/W110)
  • EER: 15.76 (A95/W72) and 9.17 (A95/W45)
04

Technology

  • Overview
  • Comfort
  • Efficiency
  • Indoor Air Quality

The Daikin ALTHERMA 3 H HT is engineered for strong, efficient, and quiet performance, thanks to its patented double‑injection compressor, high‑capacity fan, and triple‑layer sound‑reduction system. Its hydrosplit design keeps refrigerant outside the home, while the indoor Hydrobox simplifies installation. With smart controls like the Daikin man-machine interface and SkyportHome connectivity, homeowners get intuitive, modern control over their comfort system.

05

Indoor Air Quality

  • Overview
  • Comfort
  • Efficiency
  • Technology

The Daikin ALTHERMA 3 H HT supports a healthier, more comfortable home by delivering steady temperature and humidity control through efficient water‑based heating and cooling. When paired with hydronic air handlers or heat pump convectors, it provides balanced comfort without the dust and dryness of older forced‑air systems. Its quiet, consistent operation helps create a calm indoor environment you can enjoy throughout the year.

Features & Specs
Warranty & Documents
Reviews

Features & Specs

Explore product manuals, warranty details, and other essential resources.

Features

  • Modern, stylish design: Sleek gray exterior blends easily into any home setting.
  • High‑capacity, low‑profile fan: A single, larger fan delivers strong performance while staying discreetly hidden.
  • Quiet operation: Triple‑layer sound insulation and vibration pads keep noise low—about 41 dBA in standard mode and 35 dBA in low‑sound mode at 10 feet.
  • Advanced compressor technology: Patented double‑injection compressor provides efficient heating with water temperatures up to 158°F (70°C).
  • Inverter‑driven efficiency: Smart, inverter‑controlled compressors and fans maintain steady comfort while reducing energy use.
  • Cold‑climate ready: Engineered to perform reliably in temperatures as low as -18°F (-28°C).
  • Strong heating at low temperatures: Maintains high output even during extreme winter conditions.
  • Future‑focused refrigerant: Uses efficient, low‑GWP R‑32 refrigerant for reduced environmental impact.
  • Hydrosplit safety: Only water lines run indoors—no refrigerant enters the home.
  • Flexible hydronic integration: Works with the indoor Hydrobox and optional stainless‑steel hot water tanks (40/50/80 gal).

Tech Specs

  • Inverter Technology
    • Nominal capacities of 36 kBtu/h and 43 kBtu/h
    • Heating operation range down to -18°F (-28°C) ambient
    • Cooling operation range up to 109°F (43°C) ambient
    • Leaving water temperature up to 158°F (70°C)
    • R‑32 Refrigerant (GWP 675)
    • Double injection compressor technology
    • Dimensions (H x W x D): 39 ½" x 50" x 21"
    • COP: 4.86 (A45/W95) and 2.18 (A5/W110)
    • EER: 15.76 (A95/W72) and 9.17 (A95/W45)

Warranty & Documents

Explore product manuals, warranty details, and other essential resources.

5 years parts - 7 years compressor

warranty

* Complete warranty available from your local dealer or at www.daikincomfort.com. To receive the 5-Year Parts Limited Warranty and 7-Year Compressor Limited Warranty, online registration must be completed within 60 days of installation. The duration of warranty coverage may depend on the state in which you reside. Some states and provinces do not allow warranty coverage to be conditioned on registration. For a list of states and provinces that do not allow warranty coverage to be conditioned on registration, please visit www.daikincomfort.com/warranty-information or, to request a paper copy of this information, please call us at 1-855-502-3903. Other limitations and exclusions apply, refer to complete warranty details for full list of limitations and exclusions.

Warranty Certificate - PWDACHPAFV-Altherma

Product Brochure

Product Brochure - CB-ALTH_3HHT_R32

Product Flyer

Product Flyer - PF-ALT-3HHT

Engineering Manual

Engineering Manual - EM-UPRA-DAVK_UTBX

Installation Manual

Installation Manual - 4PEN-US815176-1

Operational Manual

Operational Manual - URG-4PEN-US815181-1 Operational Manual - OM-4PEN-US815180-1

Service Manual

Service Manual - SM-ESIE25-Service-Manual

Submittal Data

Submittal Data - Submittal_UPRA036DAVK-UTBX040EF6VJ Submittal Data - Submittal_UPRA043DAVK-UTBX040EF6VJ

Download valuable resources or send them to your inbox.

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Compatible Products

Explore compatible products and get connected with Contractors and Distributors.

Looking for parts?

Access the Daikin Spare Parts Bank now.

Reviews

Explore customer reviews and testimonials.

butterfly

Find a nearby Daikin Pro.

Get started with a Daikin Professional for recommendations and estimates for installing your Daikin comfort system.

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Daikin respects your privacy. Our Privacy Policy outlines how we collect and use information. By submitting your information here, you agree that we may contact you about our current and future products and services and that you are directing us to provide your submitted information to independent dealers in your area that offer our products and services. Your agreement and consent are not required to make a purchase but help facilitate future communications about, and the purchase of, Daikin, Goodman, and Amana-brand products and services.

You can unsubscribe from these communications at any time. For more information on how to unsubscribe, our privacy practices, and how we are committed to protecting and respecting your privacy, please review our Privacy Policy.

By clicking submit below, you consent to allow Daikin to store and process the personal information submitted above to provide you the content requested.

Daikin ALTHERMA 3 H HT - UPRA-DAVK

High temperature air-to-water heat pump for heating, cooling, and domestic hot water in all-climates.

01

Overview

  • Comfort
  • Efficiency
  • Technology
  • Indoor Air Quality

The Daikin ALTHERMA 3 H HT is an all‑electric heat pump that replaces conventional boilers and furnaces with a single system for heating, cooling, and hot water. It delivers high water temperatures up to 158°F and works reliably even in freezing weather. With quiet operation, energy‑saving inverter technology, and low‑impact R‑32 refrigerant, it offers a modern, efficient way to keep your whole home comfortable all year long.

02

Comfort

  • Overview
  • Efficiency
  • Technology
  • Indoor Air Quality

The Daikin ALTHERMA 3 H HT delivers reliable year‑round comfort with efficient heating, cooling, and hot water—even in low outdoor temperatures. Its easy “Plumb‑and‑Play” setup and compatibility with radiators, baseboards, in‑floor radiant systems, and heat pump convectors make it a flexible fit for almost any home. With outdoor sound levels as low as 35 dBA in low‑sound mode, it keeps both indoor and outdoor spaces peaceful and comfortable.

03

Efficiency

  • Overview
  • Comfort
  • Technology
  • Indoor Air Quality

The Daikin ALTHERMA 3 H HT is built for today’s energy‑smart homes, using advanced inverter technology and efficient R‑32 refrigerant to cut energy use and lower emissions. It performs even better at lower water temperatures, especially when paired with Daikin ALTHERMA Heat Pump Convectors. As a fully electric system, it helps homeowners move away from fossil‑fuel heating while still enjoying reliable, high‑quality comfort throughout the year.

  • COP: 4.86 (A45/W95) and 2.18 (A5/W110)
  • EER: 15.76 (A95/W72) and 9.17 (A95/W45)
04

Technology

  • Overview
  • Comfort
  • Efficiency
  • Indoor Air Quality

The Daikin ALTHERMA 3 H HT is engineered for strong, efficient, and quiet performance, thanks to its patented double‑injection compressor, high‑capacity fan, and triple‑layer sound‑reduction system. Its hydrosplit design keeps refrigerant outside the home, while the indoor Hydrobox simplifies installation. With smart controls like the Daikin man-machine interface and SkyportHome connectivity, homeowners get intuitive, modern control over their comfort system.

05

Indoor Air Quality

  • Overview
  • Comfort
  • Efficiency
  • Technology

The Daikin ALTHERMA 3 H HT supports a healthier, more comfortable home by delivering steady temperature and humidity control through efficient water‑based heating and cooling. When paired with hydronic air handlers or heat pump convectors, it provides balanced comfort without the dust and dryness of older forced‑air systems. Its quiet, consistent operation helps create a calm indoor environment you can enjoy throughout the year.

Features & Specs
Warranty & Documents
Reviews

Features & Specs

Explore product manuals, warranty details, and other essential resources.

Features

  • Modern, stylish design: Sleek gray exterior blends easily into any home setting.
  • High‑capacity, low‑profile fan: A single, larger fan delivers strong performance while staying discreetly hidden.
  • Quiet operation: Triple‑layer sound insulation and vibration pads keep noise low—about 41 dBA in standard mode and 35 dBA in low‑sound mode at 10 feet.
  • Advanced compressor technology: Patented double‑injection compressor provides efficient heating with water temperatures up to 158°F (70°C).
  • Inverter‑driven efficiency: Smart, inverter‑controlled compressors and fans maintain steady comfort while reducing energy use.
  • Cold‑climate ready: Engineered to perform reliably in temperatures as low as -18°F (-28°C).
  • Strong heating at low temperatures: Maintains high output even during extreme winter conditions.
  • Future‑focused refrigerant: Uses efficient, low‑GWP R‑32 refrigerant for reduced environmental impact.
  • Hydrosplit safety: Only water lines run indoors—no refrigerant enters the home.
  • Flexible hydronic integration: Works with the indoor Hydrobox and optional stainless‑steel hot water tanks (40/50/80 gal).

Tech Specs

  • Inverter Technology
    • Nominal capacities of 36 kBtu/h and 43 kBtu/h
    • Heating operation range down to -18°F (-28°C) ambient
    • Cooling operation range up to 109°F (43°C) ambient
    • Leaving water temperature up to 158°F (70°C)
    • R‑32 Refrigerant (GWP 675)
    • Double injection compressor technology
    • Dimensions (H x W x D): 39 ½" x 50" x 21"
    • COP: 4.86 (A45/W95) and 2.18 (A5/W110)
    • EER: 15.76 (A95/W72) and 9.17 (A95/W45)

Warranty & Documents

Explore product manuals, warranty details, and other essential resources.

5 years parts - 7 years compressor

warranty

* Complete warranty available from your local dealer or at www.daikincomfort.com. To receive the 5-Year Parts Limited Warranty and 7-Year Compressor Limited Warranty, online registration must be completed within 60 days of installation. The duration of warranty coverage may depend on the state in which you reside. Some states and provinces do not allow warranty coverage to be conditioned on registration. For a list of states and provinces that do not allow warranty coverage to be conditioned on registration, please visit www.daikincomfort.com/warranty-information or, to request a paper copy of this information, please call us at 1-855-502-3903. Other limitations and exclusions apply, refer to complete warranty details for full list of limitations and exclusions.

Warranty Certificate - PWDACHPAFV-Altherma

Product Brochure

Product Brochure - CB-ALTH_3HHT_R32

Product Flyer

Product Flyer - PF-ALT-3HHT

Engineering Manual

Engineering Manual - EM-UPRA-DAVK_UTBX

Installation Manual

Installation Manual - 4PEN-US815176-1

Operational Manual

Operational Manual - URG-4PEN-US815181-1 Operational Manual - OM-4PEN-US815180-1

Service Manual

Service Manual - SM-ESIE25-Service-Manual

Submittal Data

Submittal Data - Submittal_UPRA036DAVK-UTBX040EF6VJ Submittal Data - Submittal_UPRA043DAVK-UTBX040EF6VJ

Download valuable resources or send them to your inbox.

Sent Successfully

Something went wrong

Compatible Products

Explore compatible products and get connected with Contractors and Distributors.

Looking for parts?

Access the Daikin Spare Parts Bank now.

Reviews

Explore customer reviews and testimonials.

butterfly

Find a nearby Daikin Pro.

Get started with a Daikin Professional for recommendations and estimates for installing your Daikin comfort system.

My Favorites

Please enter your details to save and access your favorites

Daikin respects your privacy. Our Privacy Policy outlines how we collect and use information. By submitting your information here, you agree that we may contact you about our current and future products and services and that you are directing us to provide your submitted information to independent dealers in your area that offer our products and services. Your agreement and consent are not required to make a purchase but help facilitate future communications about, and the purchase of, Daikin, Goodman, and Amana-brand products and services.

You can unsubscribe from these communications at any time. For more information on how to unsubscribe, our privacy practices, and how we are committed to protecting and respecting your privacy, please review our Privacy Policy.

By clicking submit below, you consent to allow Daikin to store and process the personal information submitted above to provide you the content requested.

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