Article didn’t seem to mention balanced ventilation. That’s another important component of keeping the house warm without excessively high CO2 levels.
We have 20°C+ inside in winter and yet use very little energy to heat the home. Helps that it’s a town house so only have two outer walls, and I’ve significantly improved the insulation there. Balanced ventilation makes it so we don’t lose much of the heat. Electric floor heating in bathrooms are controlled with timer so we only get a bit of extra heat there in mornings and evenings.
The next level is water heaters with heat pumps. Should be a no brainer in warmer climates. It’s a bit challenging here because ideally I want to exchange the heat from the outside in winter. Setting up pipes for that is a challenge. Those hot water tanks with heat pumps are also crazy expensive still.
We have 20°C+ inside in winter and yet use very little energy to heat the home. Helps that it’s a town house so only have two outer walls, and I’ve significantly improved the insulation there. Balanced ventilation makes it so we don’t lose much of the heat. Electric floor heating in bathrooms are controlled with timer so we only get a bit of extra heat there in mornings and evenings.
The next level is water heaters with heat pumps. Should be a no brainer in warmer climates. It’s a bit challenging here because ideally I want to exchange the heat from the outside in winter. Setting up pipes for that is a challenge. Those hot water tanks with heat pumps are also crazy expensive still.