50m2 Flat: Best Heating Method for Insulated Brick Block Apartment - Gas or Electric?

Hello,

A two-room corner apartment on the second floor in a brick block from the 1960s. Insulated.
The total area is 52m2. Room height 2.8m. Cubature of 146 m3.

Heated with a tiled stove (large room) and electric convector heaters (small room / kitchen). G12 tariff.
The bathroom has a gas flow water heater installed, remembering probably the time of a companion general.
No chimney liner.

The apartment belongs to my parents. Due to their age and deteriorating health, including the need to bring fuel through three floors (from the basement to the second floor) I plan to change the heating method combined with bathroom renovation.

1. What do you think would be the best way to heat such an apartment? Full gas, gas (hot water plus stove) - electricity or electricity?

2. What would roughly be the investment and operating costs in the above cases?
Gas - stove, chimney liner, radiators, pipes, project, chimney sweep?
Electricity - heaters? I don't know what diameter the wires in the walls are.

3. Am I obliged to install the chimney liner only when replacing the heater? I read conflicting opinions.

4. Do I need a permit from the gas plant when switching to gas? If so, how much pleasure can it cost?

I would be grateful for any help.

Electricity - expensive, although a tiled stove can be used (by installing heating inserts - it is produced by, among others, Kraków's Elektrotermia). There must be a 3-phase power supply (otherwise the input would have to have low power, and then it will not replace coal). How much space does this room have? If it is really big, then the input would have to have 4kW (if not 4.5 kW) - in storage heating, power counts twice. Of course, a two-tariff meter (seek a power distributor), otherwise the bills will be very high. The installation must be adapted to this power consumption! A tiled stove will heat more comfortably than accumulative stoves or - even more so - than other electric heaters (not counting oil ones, which are very good).
Gas - unfortunately, we do not allow gas burners to be installed on tiled stoves, which is a pity (this applies, for example, in Ukraine). Then it would be cheaper than electricity (but more expensive than coal) and more efficient. The use of CO from a gas boiler requires the construction of the entire gas installation (a lot needs to be invested - boiler, radiators + the entire installation).

Zbigniew Rusek wrote:

Electricity - expensive

Was a friend counting or guessing? In a small apartment with good insulation, the costs of heating with electricity will be comparable to gas with a significantly lower investment.
Just as for warming and other issues - could a friend @ McFly07 complete the form below and provide results?
http://cieplowlasciwie.pl/
Thanks to this, it will be possible to estimate heat demand, required heating power, etc.

Zbigniew Rusek wrote:

. How much space does this room have?

Read a colleague's author post? After all, there is a bull standing there:

McFly07 wrote:

The total area is 52m2.
Heated with a tiled stove (large room) and electric convector heaters (small room / kitchen)

So the room has something around 25-30m2 no more.

Zbigniew Rusek wrote:

Of course, a two-tariff meter (seek a power distributor), otherwise the bills will be very high.

I repeat the question - did a colleague read the author's post?
Again as the bull stands:

McFly07 wrote:

G12 tariff

So the author has a dual-zone tariff so I don't know why he should apply for it a second time?

Zbigniew Rusek wrote:

The installation must be adapted to this power consumption!

If there is a need.

To the author - more or less describe your electrical installation - how many phases do you have, what power do you have allocated, is the installation properly made (is there no aluminum instead of copper). Basically, going to electric heating costs will depend on whether you do not have to change the connection conditions and improve the installation - this is the main investment in this heating - while the electric furnace itself is already a moderate cost. In the case of gas heating you will basically have to build the entire CO installation from scratch - the cost will be quite high. Therefore, you should calculate the costs in both cases and see how long each investment will pay back - then you can decide what will be the most advantageous option.

@zbi_gniew Rusek . @Xantix - thanks for comment
The site Ciepowlasciwie.pl is really cool. I was looking for something like this. I send the results of the heat balance: http://cieplowlasciwie.pl/wynik/2dxg

As for the electrical installation, it is a copper, single phase installation.
Regarding the power allocated by ZE, unfortunately I do not know. In any case, pre-tax collateral at 20A.

McFly07 wrote:

As for the electrical installation, it is a copper, single phase installation.
Regarding the power allocated by ZE, unfortunately I do not know. In any case, pre-tax collateral at 20A.

Contracted capacity should be specified in the contract with ZE. But it can be estimated after pre-meter security - since it is 20 A, the contracted power is less than 5 kW.
In your case, you would need to secure 7-8 kW of power for an accumulation furnace (and this is the absolute minimum). So you will need a three-phase connection. To get them you should go to your Energy District and ask to change the connection conditions for 3-phase power supply. Of course it costs - how much? - it will already calculate for you in the specific case of ZE.

McFly07 wrote:

@zbi_gniew Rusek . @Xantix - thanks for comment
The site Ciepowlasciwie.pl is really cool. I was looking for something like this. I send the results of the heat balance: http://cieplowlasciwie.pl/wynik/2dxg

As for the electrical installation, it is a copper, single phase installation.
Regarding the power allocated by ZE, unfortunately I do not know. In any case, pre-tax collateral at 20A.

Poorly. The electrical contribution to the tiled stove for such a room should have (with good insulation) min. 3kW (suppose 3.6kW). And where are other electricity consumers (washing machine, fridge, iron, TV, lighting, etc.)? This means that the electrical installation will not "yield". It would have to be that what goes the tiled stove, no other power receiver will be able to go, except for those with very low power consumption (TV, radio). According to this tariff, most of the furnace heating takes place at night, but it can be "divided", so that some (smaller) part of "cheap" electricity is also during the day and the furnace can be heated during e.g. 7 + 3 hours or 8+ 2 hours (i.e. the main time at night, 2 or 3 hours at noon, to equalize the temperature, as if it cooled slightly). In principle, heaters for tiled stoves should be powered three-phase.