Skip to product information
1 of 2

Hitachi airHome 800 R290 Single Phase Split Air to Water Heat Pump Outdoor Unit

Hitachi airHome 800 R290 Single Phase Split Air to Water Heat Pump Outdoor Unit

Regular price £0.00
Regular price £0.00 Sale price £0.00
Sale Sold out
Taxes included.
Brand logo

Product Overview: At a Glance

The Hitachi airH2O 800 R290 Single Phase Split Air to Water Heat Pump Outdoor Unit (RASM-VTW2E series) offers sustainable heating, cooling, and domestic hot water solutions for residential and light commercial applications. Utilising natural R290 refrigerant with ultra-low GWP, it provides high efficiency and safety features, making it ideal for new builds and renovations seeking eco-friendly performance.

Key Features & Benefits

  • Natural R290 refrigerant - GWP of just 3 for minimal environmental impact and enhanced efficiency.
  • Single-phase operation - compatible with standard electrical supplies for easy residential installation.
  • Advanced safety system - up to 12 integrated features including real-time leak detection via app for user peace of mind.
  • Quiet and compact design - optimized fan, insulation, and anti-vibration for low noise in urban settings.
  • High water temperature - up to 75°C in heating mode, even at -20°C outdoor for reliable performance.
  • Versatile integration - split system compatible with indoor hydroboxes for heating, cooling, and DHW.

Typical Applications & Use Cases

Suitable for homes, apartments, and small commercial spaces, the RASM-VTW2E series excels in providing sustainable air-to-water heating solutions. Its safety-focused design and efficiency make it perfect for eco-conscious renovations or new constructions requiring reliable hot water and space heating without high noise levels.

Technical Overview

The Hitachi airH2O 800 outdoor units utilize R290 refrigerant in a split configuration, supporting single-phase power and offering a wide range of capacities to suit various applications. With sealed refrigerant handling and app-connected safety alarms, it ensures safe, efficient operation up to 75°C water output. Detailed specifications, including dimensions and system compatibility, are available in the product datasheet.

Please contact us for delivery information & quotes. Thank you.

Items on this page may also be known under the following references:

  • airH2O 800 - RASM-(V)TW2E
  • Yutaki-S/SCombi/S80 Outdoor Units 1 phase
  • R290 - Split Air to Water Heat pump - Outdoor Unit - kW Nominal Output - Single Phase
  • Yutaki S / Yutaki S Combi / S80
  • airH20
  • airH2O 800M

Additional Downloads:

No downloads available.

  • Premium Aftercare
  • Flexible Returns
  • Fast Shipping
Enquire About This Product View full details
Your cart
Variant Variant total Quantity Price Variant total
Hitachi air conditioning unit with R290 natural refrigerant label on a white background
RASM-2VTW2ERASM-2VTW2E
RASM-2VTW2ERASM-2VTW2E
Regular price
£0.00
Sale price
£0.00/ea
£0.00
Regular price
£0.00
Sale price
£0.00/ea
£0.00
Hitachi air conditioning unit with R290 natural refrigerant label on a white background
RASM-3VTW2ERASM-3VTW2E
RASM-3VTW2ERASM-3VTW2E
Regular price
£0.00
Sale price
£0.00/ea
£0.00
Regular price
£0.00
Sale price
£0.00/ea
£0.00
Hitachi air conditioning unit with R290 natural refrigerant label on a white background
RASM-3.5VTW2ERASM-3.5VTW2E
RASM-3.5VTW2ERASM-3.5VTW2E
Regular price
£0.00
Sale price
£0.00/ea
£0.00
Regular price
£0.00
Sale price
£0.00/ea
£0.00
Hitachi air conditioning unit with R290 natural refrigerant label on a white background
RASM-4VTW2ERASM-4VTW2E
RASM-4VTW2ERASM-4VTW2E
Regular price
£0.00
Sale price
£0.00/ea
£0.00
Regular price
£0.00
Sale price
£0.00/ea
£0.00
Hitachi air conditioning unit with R290 natural refrigerant label on a white background
RASM-5VTW2ERASM-5VTW2E
RASM-5VTW2ERASM-5VTW2E
Regular price
£0.00
Sale price
£0.00/ea
£0.00
Regular price
£0.00
Sale price
£0.00/ea
£0.00
Hitachi air conditioning unit with R290 natural refrigerant label on a white background
RASM-6VTW2ERASM-6VTW2E
RASM-6VTW2ERASM-6VTW2E
Regular price
£0.00
Sale price
£0.00/ea
£0.00
Regular price
£0.00
Sale price
£0.00/ea
£0.00

View cart
0

Total items

£0.00

Product subtotal

Taxes included. Discounts and shipping calculated at checkout.
View cart

Interested in this product?

We can provide any item listed on our website for you, please fill out the form below with your requirements and a member of our team will get back to you shortly.

Enquire about this product


Hitachi airHome 800 R290 Single Phase Split Air to Water Heat Pump Outdoor Unit FAQs

What is the Hitachi airHome range?
Hitachi airHome is a residential air conditioning line designed for comfort, efficiency, and smart control. With stylish indoor units and quiet operation, it’s ideal for UK homes.
What is R290 refrigerant?
R290 is a natural refrigerant (propane-based) with ultra-low global warming potential. It’s used in some of the latest heat pump and air conditioning systems to support sustainability and compliance with UK decarbonisation targets.
What’s the difference between single-phase and three-phase HVAC systems?
Single-phase systems are common in UK homes and small businesses, while three-phase systems are designed for larger commercial or industrial applications where higher power and efficiency are required.
What does "split system" mean in HVAC?
A split system consists of two main components - an indoor unit and an outdoor unit, connected by refrigerant piping. They’re common in both residential and light commercial settings.
What is an air-to-water system?
Air-to-water heat pumps use outdoor air to produce hot water for heating or domestic hot water supply, offering an efficient and green alternative to traditional boilers.
What is a heat pump?
A heat pump transfers heat rather than generating it through combustion, offering efficient heating and cooling. Modern heat pumps can deliver multiple units of heating for every unit of electricity consumed, helping lower running costs.

We’re Here To Help With All Hitachi Heat Pump and RAC Solutions

Need any help with our range of Hitachi airH20 800 products? Looking for advice on Hitachi heat pump systems? Our team is here to support you with both air-to-water heat pumps and RAC (Room Air Conditioning) split systems. Whether you need efficient residential heating and cooling or a commercial renewable energy solution, we can provide expert recommendations. From product selection and energy efficiency advice to installation and after-sales service, we make sure you get the most from Hitachi heat pump technology. Contact us today for help with your Hitachi heat pump or RAC system.