Sunamp Thermino xPlus Heat Battery Range Indirect Water Heaters

Sunamp Thermino xPlus Heat Battery Range Indirect Water Heaters

The Sunamp Thermino xPlus Heat Battery Range offers a smart, indirect alternative to traditional hot water cylinders for UK homes, providing scalable thermal storage in 150L to 300L equivalents. Designed for seamless integration with gas/oil boilers, high-temperature heat pumps, or solar PV systems, these units use patented Plentigrade phase change material (PCM) to store up to 4x more energy than water in a compact footprint—up to 4x smaller than equivalent cylinders. Ideal for system boilers with grid backup or preheating combi boilers, the xPlus range reduces gas consumption, carbon emissions, and energy bills while delivering high-flow mains pressure hot water on demand. Modular and flexible, units can be connected in series or parallel, with plumbing exits on three sides for easy installation in space-constrained properties like 2-5 bedroom homes.

Features and Benefits

• Versatile Compatibility: Works with any energy source—boilers, heat pumps, —via swappable Optimino keys (hp for heat pumps), allowing easy upgrades without replacement.
• High-Performance Storage: PCM technology enables rapid charging from renewables or off-peak electricity, storing surplus energy for on-demand release, with electric boost via a 2.8kW internal element.
• Ultra-Low Maintenance: No mandatory annual servicing, minimal legionella risk due to non-toxic materials, and a 10-year warranty on the heating element for reliable, hassle-free operation.
• Energy and Cost Savings: Ultra-low heat losses (up to 4x lower than conventional cylinders) and A+ efficiency rating cut running costs; solar integration captures free PV energy, enhanced by tools like MyEnergi Eddi diverters.
• Space-Saving Design: Sleek, modular units free up valuable home space, with flexible orientation and quick installation—perfect for retrofits or new builds.
• Safe and Powerful Output: Delivers mains pressure hot water at high flow rates, with safety features like thermostatic mixing valves (45-55°C recommended) for consistent, hygienic supply.

Technical Specifications

Why Choose Sunamp Thermino xPlus?

Opt for the Sunamp Thermino xPlus for its unparalleled flexibility in transitioning to low-carbon heating—effortlessly switch from boilers to heat pumps or add solar PV without unit replacement, all while enjoying compact design, ultra-low heat losses, and significant savings on energy bills in UK homes aiming for net-zero.