Storage Heaters

Dimplex Storage Heaters

Dimplex Storage Heaters
Sunhouse Storage Heaters

Sunhouse Storage Heaters
Stiebel Eltron Storage Heaters

Stiebel Eltron Storage Heaters

Electric Storage Heaters

Upgrade your home or commercial property’s heating efficiency with our high-performance collection of electric storage heaters at Simco Direct. Designed to take advantage of low-cost, off-peak electricity tariffs like Economy 7, modern storage heaters store thermal energy overnight and release steady, comfortable warmth throughout the day.

Whether you are looking to replace outdated, inefficient night storage heaters or fit out an all-electric modern apartment, our curated selection of high heat retention (HHR) storage heaters from market-leading UK brands—including Dimplex, Sunhouse, and Stiebel Eltron—delivers complete heating control while keeping running costs down.

Modern High Heat Retention (HHR) Heating Technology

Older traditional storage heaters often leaked heat during the morning, leaving rooms cold by the evening. Modern High Heat Retention (HHR) storage heaters feature advanced ceramic thermal bricks wrapped in ultra-dense insulation to retain up to 27% more heat. Equipped with smart, fan-assisted output, these units release warmth exactly when you need it, avoiding energy waste.

Key benefits of our storage heater collection include:

  • Lower Running Costs: Charge your heaters using cheaper night-rate electricity (Economy 7 / Economy 10) to cut your daytime energy bills significantly.
  • EcoDesign Lot 20 Compliant: All our storage heaters feature 7-day programmable timers, digital thermostats, and open window detection to meet strict UK energy standards.
  • Adaptive Start & Smart Controls: Modern HHR units dynamically learn room heat-up times, adjusting energy consumption based on weather forecasts and user schedules.
  • Zero Maintenance & Simple Installation: No gas pipes, flues, or annual boiler servicing required—making storage heating a clean, hassle-free option for properties off the gas grid.

Why Buy Storage Heaters from Simco Direct?

At Simco Direct, we are trusted UK specialists in heating, ventilation, and air treatment solutions for domestic homeowners, landlords, and trade professionals.

  • Leading UK Brands: We stock top-rated, compliant HHR range lines such as Dimplex Quantum and Sunhouse Quantum series.
  • Trade & Bulk Discounting: Upgrading an entire block of flats, HMO, or rental portfolio? Take advantage of our bulk pricing discounts.
  • Fast UK Mainland Delivery & 30-Day Returns: Get direct-to-door dispatch with flexible, secure checkout options including PayPal Pay in 3.

FAQs

  • How do electric storage heaters save money in the UK?

    Storage heaters take advantage of off-peak electricity tariffs, such as Economy 7 or Economy 10. These tariffs offer significantly cheaper electricity per kilowatt-hour (kWh) overnight. The storage heater draws power during these hours to heat up internal high-density ceramic bricks, storing thermal energy to keep your home warm during the day without relying on peak-rate electricity.

  • What is a High Heat Retention (HHR) storage heater?

    High Heat Retention (HHR) storage heaters are modern, highly insulated electric heaters that hold onto stored heat far more effectively than traditional models. They feature digital controls, dynamic charging algorithms, and quiet fan assistance to discharge heat on demand. To qualify as an HHR heater under UK regulations, a unit must retain at least 45% of its heat 16 hours after charging.

  • Can I replace an old storage heater with a modern unit on existing wiring?

    In most cases, yes. Modern high heat retention storage heaters can usually replace old night storage heaters using the existing off-peak wiring circuits. However, because modern units also include continuous digital displays and smart features, some models require a secondary 24-hour peak supply connection. We recommend having your installation checked by a qualified electrician to ensure your wiring setup is suitable.

  • How do I choose the correct size storage heater for my room?

    The required heater size (measured in kW input/output rating) depends on room volume (length × width × height), insulation levels, and window type:

    • Small Bedrooms / Study (up to 10 m²): ~0.7 kW – 1.0 kW HHR heater
    • Medium Bedrooms / Small Living Rooms (10–16 m²): ~1.2 kW – 1.5 kW HHR heater
    • Large Living Areas / Open Plan Spaces (16–25+ m²): ~2.0 kW – 3.0 kW HHR heater
  • Do storage heaters require annual servicing or maintenance?

    No. Unlike gas, oil, or LPG boilers, electric storage heaters have no moving water parts, burners, or flues, so they do not require annual gas safety inspections or regular boiler servicing. Modern units simply require occasional surface dusting and checking air grilles to ensure smooth airflow.