Log In / Register
Basket
Free delivery on orders over £75 ex VAT
Earn points with My City Plumbing Rewards
Free click & collect from branches nationwide
Buy now, pay later interest free
Hover Over to Zoom In
Description
Revolutionise your water heating with intelligent, sustainable storage. The eSTOR™ Indirect Thermal Battery offers all the innovation of our direct model — with added flexibility. Designed for modern, eco-conscious heating systems, it uses an internal heat exchanger to safely draw energy from heat pumps, solar PV or other sources, without ever mixing fluids. The result? Mains-pressure hot water on demand, superb thermal retention, and long-term energy savings. Future-ready and maintenance-free, it’s the smart choice for sustainable homes and commercial systems alike — and a major upgrade from the bulky cylinders of the past.
- Sealed Coil Heat Exchanger - Transfers heat indirectly — perfect for systems that require fluid separation, like heat pumps or solar PV.
- Ideal for Heat Pumps & Renewables - Designed to integrate with low-temperature, sustainable heating systems and hybrid setups.
- Compact & Energy Dense - Stores more usable thermal energy in a smaller space, helping to free up room without sacrificing output.
- Advanced Phase Change Technology - BioPCM core delivers long-lasting heat and rapid recovery — with reduced energy demand.
- A+ Rated Efficiency - Tri-layer insulation locks in heat and reduces standing losses — ideal for eco-conscious homes.
- No G3 Compliance Needed - Safer by design — no Legionella cycling, high-temp storage, or annual safety checks required.
- Supports Off-Peak Charging - Helps users store heat when energy is cheapest, for use when it’s needed most.
- Powerful Mains Pressure Delivery - Consistent flow and comfort — even in high-demand households or small commercial spaces.
- Easy Integration - Compatible with solar, heat pumps, traditional systems, or mixed-source setups.
- 15-Year Warranty - Engineered for performance, safety, and peace of mind over the long term.
Technical specification
Weight SourceSupplierERP (Energy Efficiency)YYears Guaranteed15Standards MetCE, UKCAERP RatingA+Supplier Part NumberEHS-ES6-HW-UBrand NameEHS
Reviews
Help & Feedback
Chat With Us
Give Us Feedback