On an induction hob, the pan makes the heat, not the glass
An induction hob generates heat in the pan itself and needs a magnetic pan. In a Which? test it boiled water in 4.81 minutes against gas's 9.69.
tag archive
#energy-efficiency.
Every story tagged #energy-efficiency.
Architects are building thick walls and deep windows again
Sunlight through glass is usually a home's main summer heat source, says the Passivhaus Trust. Some architects now answer with heavy walls and deep windows.
Passive house is a measured standard, not a style
Passive house caps air leakage at 0.6 changes an hour, tested by fan. It costs 5 to 10% more to build. A Los Angeles house on its lines outlasted a wildfire.
Air conditioning harms the climate through power and gas
Air conditioning warms the planet twice, through the power it draws and the gas inside it. The UN's Mark Radka puts cooling at 7% of global emissions.
UK installers fill cavity walls through the outer brickwork
Installers drill through a UK home's outer brick and inject insulation into the cavity. A typical job costs about £2,200 and could save up to £370 a year.
A heat pump moves heat, which is why it works far below freezing
A heat pump carries heat from outdoor air into a home rather than burning fuel. That lets it run far below freezing, and run backwards to cool a room.
Triple glazing's second gap cuts heat loss further
Triple glazing adds a third pane and a second gas-filled gap, so it loses less heat than double glazing. The whole window, frame included, sets the result.
A combi boiler heats water only when a tap opens
A combi boiler connects to the mains and heats water the moment a tap opens, with no cylinder to fill, top up or wait to reheat.
Smart thermostats learn your routine from your own adjustments
A smart thermostat learns a routine by copying the adjustments a household makes. The Heating Hub's Jo Alsop says geofencing drove Tado's 28% saving claim.