Installing Electric Heater in 2004 Galmet Boiler: Compatibility & 120L Capacity Queries

Question

Hello Is it possible to install an electric heater in an old boiler (from 2004)? I do not have any instructions from this boiler anymore, I know that it is from galmet. Of course, the stove is now connected to the central heating. But for higher temperatures, I would prefer to heat it...

1 PAWEL · Answer

The best solution is to invest in a 3-phase or single-phase 230V electric instantaneous water heater. Really big savings on the accounts.

DiZMar · Answer

Of course you can, and the boiler manufacturer is irrelevant. You need to buy a heater for the boiler with a collar and a thermostat. The higher the power, the faster the water will be heated, taking into account the permissible load capacity of the installation. You have to cut a hole for this heater and screw the heater flange in the cut hole with temperature-resistant gaskets, of course. Additionally, a thermostat should be installed that will turn off the heater when the set temperature of the water in the boiler is reached. Connect to the electrical system and enjoy hot water without lighting the central heating furnace. The fact that electricity bills will increase is a secondary matter.

olopan · Answer

At the turn of the century, we had a three-phase connection, but from what I can remember, the bills were high. I was also considering the option of installing an additional 80-liter electric boiler. Which option will be more economical and less unreliable for two?

DiZMar · Answer

Installing any electric water heating instead of heating it with CO means an increase in electricity bills, not savings. Of course, the flow-through method will increase the electricity bills less than heating the heater in the boiler with the same use of hot water. There is a slight subtle difference. In order to fulfill its role, the flow-through system usually needs installation and greater efficiency than heating water in a boiler. There are still a few advantages and disadvantages of both systems to each other. If you do not have a reduced night and weekend tariff, it is a more economical flow. If you have such a tariff and you can use it (heating at a reduced tariff), the boiler will be more economical. Failure is difficult to predict.

olopan · Answer

I would be more inclined to install this electric heater in this boiler, because it is less work and cheaper. I remembered that the anode has not been changed since the installation of this boiler, so I do not know what the condition of the boiler will be ...

DiZMar · Answer

What is this anode in a heated boiler with WHAT ?

olopan · Answer

I suggested a piece of paper that was stuck to the boiler. Do you think that such an ordinary heater, for example from Allegro, EAN + Construction + i + Tools% C4% 99dzia & ev_ln = PRODUCT + GROUP & ds_rl = 1254605 & gclid = EAIaIQobChMImKrajpzW2gIVQ6MYCh38GAvIEAQYASABEgKFEfD_BwE & gclsrc = awE.dsoduCFJAc1 will be appropriate ?? And if I bought this heater, do I have to install the anode too?

Anonymous · Answer

Simply a magnesium rod mounted in the boiler. Magnesium anodes are used to provide corrosion protection for domestic hot water tanks made of steel and covered with ceramic enamel.

DiZMar · Answer

Thanks for the clarification. I didn't know about it.

olopan · Answer

Gentlemen, I cut a hole in this foam and I do not know what is under this lid, but I think there will not be a thread suitable for screwing in the heater. I don't want to dig up half of the basement and then go shopping and looking for the right parts. Can you tell me what to buy and then put it together? As I wrote before, the boiler is from 2004.

DiZMar · Answer

Yet You need to buy a heater with a flange and a few holes (or drill such holes) for screws, not a screw-on heater with a thread as you presented in the link, because there is probably no such thread in your boiler. The heater flange must be much larger than the heater diameter so that it can be screwed to the boiler with several screws. Another problem is how to screw if there is no access to the inside of the boiler and there is no possibility of holding it from the inside. For the creative, it can also be solved. For example, a heater from your link and a separate flange with a thread that fits this heater.

Anonymous · Answer

Under this lid there is a gasket and a hole in the tank through which you can, for example, clean the inside of the tank from sediments. Of course, unscrewing this lid will drain the water from the boiler.

Michelson · Answer

And what is the diameter of this cap? 2 kW heaters usually have a 5/4 inch thread. In my opinion, the best solution, although it requires some work, is to buy a heater, get it and weld a flange with a thread suitable for the heater into this revision. I just do not know what type of thread there is, because I have a boiler that is already adapted to the installation of the heater.

Anonymous · Answer

The caseback has a fairly large diameter, although the hole under it is slightly smaller. Nevertheless, my hand, while cleaning the boiler, with some difficulty passes through the hole under the lid (in my boiler). I installed the anode mentioned in post # 9 in this case back. I drilled a suitable hole in the lid and welded in an ordinary (not galvanized) socket with a suitable thread. Of course, welding must be airtight.

olopan · Answer

Gentlemen, won't that be appropriate?

Michelson · Answer

I suspect that it will fit, although they charge a bit for a piece of sheet metal with a thread. Before buying, however, I would measure this lid and consult the store in order to avoid a mistake, especially since you do not know the exact marking of the boiler. I would also buy an anode, because there is probably only a memory of that.

Anonymous · Answer

It is best to approach the shop with water and sewage fittings and borrow such a flange for fitting. If necessary, you can return it. In the case of a mail order store, this is problematic. It can be cheaper to weld an ordinary muff into this lid. Of course, you have to try on the heater and the anode for this flange. For me, the anode in the boiler is about 12 years old and three years ago, when I checked it, it was in good, even very good condition. It only had small pits.

olopan · Answer

I was in the store and of course they don't have it and you have to wait for them to order. I also called the Galmet hotline and the guy said that this flange needs to be produced

Time 4 working days + shipping.
Speaking of the anode, is it possible that it is located on the other side of the boiler?

Anonymous · Answer

For me, the anode was originally placed on the other side of the boiler by the manufacturer. However, on the other side, I have a water circulation attached and I moved the anode to the lid. As for the original flange, it would be much cheaper to remake the lid using a home-made lid by drilling a hole in it and welding a muff suitable for the electric heater.

Michelson · Answer

Speaking of anodes, it is usually on the other side of the heater in horizontal tanks. For me, the water is probably aggressive, because there is not much left of the 21.3x165 anode after two years.

Anonymous · Answer

The anode protects the boiler (tank) against corrosion. If the anode wears out after two years, this is normal. But I don't know why, when I checked the anode at home three years ago, maybe it was 20% used after 12 years. There are also titanium anodes, much more durable, but also much more expensive.

olopan · Answer

Gentlemen, I have one more question about the boiler and if it is possible, please give me a quick answer, you know the champions league, etc.
The water in the boiler keeps the temperature for a short time and if you close these two valves (supplying and removing heat from the stove) is it safe? Because I just pawned them, and I don't have a built-in safety valve yet, and I wouldn't want anything to happen.

I bought the muffle and I am waiting for the courier, so when I build everything up, I will let you know.

Michelson · Answer

I believe that it is not safe for the coil as the water is incompressible. I only close one valve (inlet) to close the circuit through the coil.

olopan · Answer

Yesterday I installed a safety valve and a new muff with a heater, of course it was not without some problems. The most important thing is that everything works as it should. The tank was full of rust and anode residue.
And here is my question, because originally the anode was attached to the lid which I replaced with this muff. On the other side of the boiler there is a coil, so it will not be built there because it will simply not fit. I do not know where and how to install this anode now? Can it be loosely put into the boiler ??

dabu · Answer

You cannot throw it in loosely, as it must be in contact with the boiler's potential.

olopan · Answer

I thought so too, maybe there is a patent for it?

olopan · Answer

Gentlemen, I have a problem with a leaky safety valve now. There is no expansion vessel in the installation and I intend to install it together with the safety group. Can you judge if it will be well mounted?

To make it faster, I decided to use the hose, I hope it can be used. Can the security group https://www.obi.pl/systemy-grzewcze/hydroland...bezpieczenstwa-stalowa-do-cwu-6-bar/p/6334627 be from the CO installation ??? Because somehow the parameters do not differ, and I had access to one?

W0jtek92 · Answer

Hello, the diagram is fine, it is better that the safety group should be connected `` rigidly '' using the PP or PEX system, but the hose will also be suitable for poverty, the safety group for CO differs in the scale of the pressure gauge, it has a range from 0 to 3 bar , and Ta for DHW from 0 to 6 bar, so the pressure gauge in this CO group will "turn" and after playing.
Regards.

olopan · Answer

Hi
It's not in Catholic, but I just put it together and so far everything is working, the water is not dripping. I have a pressure gauge up to 10 bar. Now it shows me 5 bars and isn't it better to install a reducer and reduce it to 4 ??

Installing Electric Heater in 2004 Galmet Boiler: Compatibility & 120L Capacity Queries

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