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Electric Storage Heaters to Gas Central Heating: ECO4 Options

Hamza Moeen, ECO4 Analyst
Hamza Moeen
ECO4 Analyst
Updated
16 Oct 2025
ECO4 scheme information - ECO4 UK government energy efficiency scheme
16 min read
Key Takeaways
100% Free Conversion
ECO4 covers full £8,000-£15,000 storage heater to gas central heating conversion
Massive Annual Savings
Save £1,200-£1,600 per year switching from electric storage to gas heating
Complete System Included
New A-rated boiler, radiators in every room, full pipework, controls & commissioning
Gas Connection Support
ECO4 may include gas connection costs (£500-£2,500) if mains gas available
Property Value Boost
Increases home value 5-10% and improves EPC rating by 2 bands typically
5-7 Day Installation
Complete conversion in one week with minimal disruption to your home

Storage Heater to Gas Conversion Overview

BEFORE
Electric Storage Heaters
  • • £2,400-£2,800/year costs
  • • Limited control
  • • Heat fades by evening
  • • No instant hot water
  • • Poor EPC rating
ECO4 Conversion
5-7 Days
100% FREE
AFTER
Gas Central Heating
  • • £1,000-£1,400/year costs
  • • Instant control 24/7
  • • Consistent warmth
  • • Unlimited hot water
  • • Improved EPC rating

As an ECO4 analyst with over 12 years of experience, I've guided more than 7,000 successful installations. Converting from electric storage heaters to gas central heating is one of the most transformative ECO4 measures available. You'll save £1,200-£1,600 annually, gain instant heating control, and increase your property value by 5-10%. The entire conversion—worth £8,000-£15,000—is completely free if you qualify for ECO4.

YES, ECO4 fully covers the conversion from electric storage heaters to gas central heating at zero cost for eligible households. As an ECO4 analyst with over 12 years of experience guiding more than 7,000 successful installations, I can confirm this is one of the most valuable ECO4 measures available—worth £8,000-£15,000 and saving you £1,200-£1,600 annually.

Understanding Electric Storage Heaters vs Gas Central Heating

Electric storage heaters and gas central heating are fundamentally different heating systems with dramatically different running costs and user experiences.

Electric Storage Heaters work by charging overnight using cheaper off-peak electricity (Economy 7 tariffs). They store heat in ceramic bricks and release it throughout the day. While this sounds economical, modern energy prices have made them extremely expensive to run—costing £2,400-£2,800 annually for a typical 3-bedroom home.

The main problems with storage heaters include: limited control (you can't adjust heat instantly—must wait for overnight charging), inconsistent warmth (warmest in morning, gradually cooling through the day), wasted energy (heating home even when you're out), no hot water provision (requires separate immersion heater costing £300-£400/year), poor comfort (rooms rarely at desired temperature when needed), and high running costs (electricity 3-4x more expensive than gas per kWh).

Gas Central Heating provides instant, controllable heat throughout your home using a gas boiler that heats water circulated through radiators. Modern A-rated combi boilers (92%+ efficiency) are the most cost-effective heating solution for UK homes with mains gas access.

Gas central heating advantages: instant control (heat any room exactly when needed with thermostat), consistent comfort (maintain steady temperatures 24/7), unlimited hot water (combi boilers provide instant hot water on demand), massive savings (gas costs 6.5-9p/kWh vs electricity at 16-19p/kWh), room-by-room control (thermostatic radiator valves let you set different temperatures per room), property value boost (homes with gas central heating sell for 5-10% more), and improved EPC rating (typically improves by 2 bands, e.g., E to C).

Expert Insight: In my 12 years analyzing ECO4 installations, converting from storage heaters to gas central heating consistently delivers the highest customer satisfaction and largest energy bill reductions. Customers typically save £1,200-£1,600 annually—that's the equivalent of a family holiday, new car payments, or significant debt reduction every single year.

What ECO4 Covers in Storage Heater Conversion

ECO4 provides a complete turnkey conversion from electric storage heaters to gas central heating at absolutely zero cost to eligible households. This isn't a partial upgrade—it's a full professional installation worth £8,000-£15,000.

ECO4 Complete Package Includes:

Complete Storage Heater Removal: All electric storage heaters professionally disconnected by electricians. Heavy units (some 100kg+) safely removed. Pre-2000 heaters tested for asbestos and disposed of according to regulations. Electrical wiring made safe. Wall restoration and filling of fixing holes.
New A-Rated Gas Boiler: Leading brand combi boiler (Worcester Bosch, Vaillant, Baxi, Ideal, or Viessmann). 92%+ efficiency rating (A-rated). Appropriately sized for your property (typically 24-35kW). 5-10 year manufacturer warranty included. Installed by Gas Safe registered engineers.
Complete Radiator System: New radiators in EVERY habitable room (8-12 typically). Appropriately sized for each room's heat requirement. Thermostatic radiator valves (TRVs) for individual room control. Wall brackets and all necessary fittings. Professional installation ensuring level mounting.
Full Pipework Installation: Copper pipework throughout entire property. Flow and return pipes to all radiators. Gas supply connection to boiler. Professional pipe routing minimizing visible pipework. All joints tested for leaks.
Heating Controls: Digital programmer for time and temperature control. Room thermostat for overall temperature management. Thermostatic radiator valves (TRVs) on all radiators. Smart thermostat option available (Google Nest, Hive, etc.). User training on all controls.
System Commissioning: Complete system fill and pressure testing. Boiler commissioning and programming. All radiators tested and balanced. Air bleeding from entire system. Gas Safe certificate provided. Building regulations compliance certificate.
Gas Connection Support: If mains gas runs past your property but you're not connected, ECO4 may include gas connection costs (£500-£2,500) in the package. Assessment of gas availability during survey. Coordination with gas network providers. All connection fees potentially covered.

Important: Everything listed above is included in the ECO4 package at zero cost to you. There are no upfront payments, no repayments, no loans, and no hidden fees. If you're eligible for ECO4, the entire £8,000-£15,000 conversion is completely free.

The only potential exception is if you need a gas connection and the connection point is very far from your property (which may incur partial costs), but your ECO4 assessor will discuss all options during the free home survey.

Real Customer Success Stories

D
Dorothy Miller
Age 71 • Bristol • Pension Credit

"I had those awful storage heaters for 15 years—always freezing by evening and my electricity bill was £240 a month! Hamza explained ECO4 and within 6 weeks I had beautiful new gas central heating throughout my 3-bedroom house. Now I'm warm all day, have instant hot water, and my bills are just £95 a month. I'm saving £1,740 a year! Completely free installation—absolutely life-changing."

Annual Savings£1,740
K
Kevin & Lisa Patterson
Manchester • Universal Credit • 2 Children

"We moved into a council house with storage heaters and the electricity costs were crippling—£285 a month with two young kids needing warm bedrooms. ECO4 was a miracle. They removed all 9 storage heaters, installed a Worcester Bosch combi boiler, 10 radiators throughout, and even connected us to mains gas (included free!). Installation took 6 days. Now we pay £110 a month and the house is warm 24/7. Saving over £2,100 a year has changed our lives."

Annual Savings£2,100
J
James Robinson
Age 43 • Birmingham • LA Flex

"I bought a 1970s house with original storage heaters—nightmare to live with and costing £205 a month. I didn't qualify for benefits but my income was low enough for LA Flex. ECO4 covered the entire £11,500 conversion—removed all 8 storage heaters, installed Vaillant combi boiler, 8 new radiators, full pipework. The difference is incredible. Instant heating control, unlimited hot water, and my gas bill is just £85 a month. Saving £1,440 annually and my house value increased by £15,000!"

Annual Savings£1,440

Frequently Asked Questions

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