Hi,
I went with a closed system on my homemade wood gasifier. I have a very low pressure however as my water heat exchanger was not built with pressurization in mind and I don't feel like blowing it up.
So I have a low fill pressure of about 3-4 psi. When up to operating temperature, I stabilize around 6 psi. My pressure relief pops at about 10 psi.
I'm having a hard time finding fill vavles that will adjust down to the low pre-charge pressures I use. Does anybody know if one exists and where I might find it? I right now fill via a line that's Tee'd into the return for the DHW loop in my house by cracking open a ball valve and watching the pressure gauge. But it's a pain to always have to go down there to do it. I have a water meter hooked up so I can monitor water consumption. I have to add water every few days because I have a tiny seeping leak in one of the compression connections on the Pex in my shop's radiant floor.... I've got the radiant valved off for now till I can fix it, but if I need to heat with it before then, I'll have to deal with the leak.
Plus, I've boiled the system twice (don't ask!!) and then had to add water the next morning as I had no pressure upon cool-down of the system.
I went with a closed system on my homemade wood gasifier. I have a very low pressure however as my water heat exchanger was not built with pressurization in mind and I don't feel like blowing it up.
So I have a low fill pressure of about 3-4 psi. When up to operating temperature, I stabilize around 6 psi. My pressure relief pops at about 10 psi.I'm having a hard time finding fill vavles that will adjust down to the low pre-charge pressures I use. Does anybody know if one exists and where I might find it? I right now fill via a line that's Tee'd into the return for the DHW loop in my house by cracking open a ball valve and watching the pressure gauge. But it's a pain to always have to go down there to do it. I have a water meter hooked up so I can monitor water consumption. I have to add water every few days because I have a tiny seeping leak in one of the compression connections on the Pex in my shop's radiant floor.... I've got the radiant valved off for now till I can fix it, but if I need to heat with it before then, I'll have to deal with the leak.
Plus, I've boiled the system twice (don't ask!!) and then had to add water the next morning as I had no pressure upon cool-down of the system.
