It's already good, with 60 cm walls it's a very good thermal inertia. If in addition, the windows have 4/16/4 argon double glazing and 20 cm of under-roof insulation, that is more than enough in Normandy.Forhorse wrote:The insulation is weak, even non-existent (10cm of glass wool + 15mm wood chipboard on the exterior walls)
12 kWH must be the PCS, identical to fuel oil. The real power PCI takes into account the high humidity rate generated by a kerosene stoveForhorse wrote:1 Kg of CLAMC gives it seems 12kWh of heat
at the price of 1.875€ per liter it therefore gives 0.15625€/kWh (I simplified 1l=1Kg even if I know it's wrong, if someone wants to refine...)
At this price, it still seems profitable to heat with CLAMC rather than pure electricity (toaster...) because the kWh EDF is at 0.1841€/kWh
BUT, considering a heat pump with a COP of 3, that gives us 0.06137€/kWh of heat;
https://www.precarite-energie.org/IMG/p ... _trole.pdfDearomatized oil "contains" about 10 kWh per litre....
The combustion of 1 kg of kerosene:
- generates a lot of humidity (about 1,4 liters of water per kg of oil burned). Through
elsewhere, the presence of humidity on oneself (facing the combustion) or in
the room is a source of major discomfort (see this site).
- consumes about 3,5 kg of oxygen. Continued use of a kerosene stove
in a room that is just normally ventilated may therefore generate a
depletion of oxygen in the air and cause symptoms
comparable to "altitude sickness" (headaches, fatigue, lack of appetite, dizziness,
insomnia).
A heat pump heats up at low temperatures and will take longer to heat up.
With your thick walls, you can take a tempo option and heat during the HC period on red days. Mine heats 120 m² permanently. I got some for less than €500 last year. I also have a wood stove that we light only in the evening at mealtimes, only when it's very cold and on red days from now on.
You can put an outer double skin insulated casing through a wall.Forhorse wrote:its surface makes it complicated to install a wood stove: basically it is a room of 24m² (6x4) which contains the kitchen/living room, a bathroom (6m²), a staircase upstairs .