Sunamp Thermino300 hpPV-VT Heat Battery

Original price was: £3,525.59.Current price is: £2,714.70. inc. VAT

[£2,262.25 exc. VAT]
For assistance call us on: 01260 228 822

SKU: DRP-DHW-ATZ-1 Categories: , Tags: ,


Sunamp Thermino 300 hpPV-VT heat battery for charging from a boiler or Vaillant Arotherm heat pump and PV or grid electricity. Perfect for a 4-5 bedroom property.

Thermino hpPV-VT uses a Vallant heat pump as a main source of heat, and surplus PV energy to provide an AC power supply, which is supplied to the electric heater inside the Heat Battery. This is a great way to add water storage and increase the self-consumption of a PV system. The reduced size combined with the fact that the Sunamp does not need any venting allows for full flexibility in install location.

Only the Myenergi Eddi can be used as an immersion controller at present.

The Thermino 300 hp-VT would typically be installed in a 4-5 bedroom property.

Note, the Sunamp is very heavy: tilting it beyond 45 degrees may damage the unit and void your warranty.


Sunamp heat battery for charging from off-peak grid electricity. Perfect for apartments or off-grid applications.

Sunamp Thermino Heat Batteries are designed to efficiently store heat for domestic hot water systems. Their super-compact Heat Battery technology offers a uniquely clean, safe, compact and very low maintenance thermal energy storage solution.

Using the non-toxic phase change material (PCM), sodium acetate trihydride,  they can be charged with a variety of energy sources:

They can be retrofitted to existing hot water systems,  or specified for use in new build projects. Sunamp Heat Batteries can substitute a standard hot water tank in a fraction of the space.

The Thermino batteries are available in different models for different heat sources. The numbers in the product names represent equivalent hot water cylinder size.

For compatibility with different heat pump models please contact us for advice – not all heat pumps are compatible with Sunamp and selection of the appropriate Sunamp for a particular heat pump may not be obvious.

Thermino Heat Batteries

Thermino Heat Batteries
Product Code DRP-DHW-ATZ-1
Equivalent energy storage 14.0kWh
Equivalent hot water capacity 256L
Water available at 40°C 333L
Weight in use 233kg
Height 1050mm
Width 365mm
Depth 575mm

Technical Specifications

Standing heat loss 35W
Energy efficiency rating A+
Recommended flow rate 25LPM
Minimum supply pressure 1.5 bar
Maximum supply pressure 10 bar
Connected load at 230v, 50hz 2,800W

Standard delivery is only to curbside, if you believe you may need assistance moving this into your property, especially upstairs, please contact about a tailor delivery service we can provide for Sunamps.


Please contact us for precise delivery times.


Call Our Team:

01260 228 822

Mon - Fri: 9am - 6pm


Storage core warranty: 10 Years
Other parts warranty: 2 Years
View Warranty