Hello,
I am a chronic do it yourselfer and I am putting some serious thought into converting my old electric tank water heater into a water preheat tank for my tankless gas water heater. It will be preheated during the summer by a through-the-wall unit mounted in the garage blowing cold air inside the house and expelling heat into the water tank and (vented) garage. The A/C will be fitted with a shell and tube consenser in series with the current condenser. I have not been able to find a small window unit employing R134a, which is the only ype of refrigerant I can use since I am not licensed for anything else. When the R22 is removed for the modification, what can I do to get the same performance from R134a? I am afraid that if I make these modifications I will not be able to find anyone that will charge it back up for me.
I am a chronic do it yourselfer and I am putting some serious thought into converting my old electric tank water heater into a water preheat tank for my tankless gas water heater. It will be preheated during the summer by a through-the-wall unit mounted in the garage blowing cold air inside the house and expelling heat into the water tank and (vented) garage. The A/C will be fitted with a shell and tube consenser in series with the current condenser. I have not been able to find a small window unit employing R134a, which is the only ype of refrigerant I can use since I am not licensed for anything else. When the R22 is removed for the modification, what can I do to get the same performance from R134a? I am afraid that if I make these modifications I will not be able to find anyone that will charge it back up for me.