So I'm thinking my Taco 0010--IFC 3-speed just isn't cutting it as the circulation pump on my boiler loop. My head is running around 12-13 feet, which is over the 10ft head range for the pump. It came with the boiler, so I figured I'd give it a shot. However, even at speed 3 I just don't think it is moving enough flow to heat storage.
I have insulated my supply/return pipes well, and will add more soon. I've got the air purged from the system, despite a few minor leaks. My boiler is idling at 195, with water in the supply pipe by the boiler AT or above 195 quite often, despite not ideally dry wood. But my storage never gets much above 180. The only thing I can think of is that the Taco pump is not getting the water to storage with enough GPM. I figure by the time it lifts the water to the 2nd floor and moves it the 100 ft to the primary loop, I'm only getting 8-9gpm on speed 3, which is eating 125Watts.
I have an Alpha on the other end which is doing this same lift in the primary loop, from the cellar, back up 12 feet to the boiler loop, running around 13gpm & moving water at 48watts. It's range is up to 19ft of head and 21gpm max.
My question is, can I get another Alpha and slip it into the Taco flanges I have already installed, or do I have to really break down the system and swap flanges as well??
I have insulated my supply/return pipes well, and will add more soon. I've got the air purged from the system, despite a few minor leaks. My boiler is idling at 195, with water in the supply pipe by the boiler AT or above 195 quite often, despite not ideally dry wood. But my storage never gets much above 180. The only thing I can think of is that the Taco pump is not getting the water to storage with enough GPM. I figure by the time it lifts the water to the 2nd floor and moves it the 100 ft to the primary loop, I'm only getting 8-9gpm on speed 3, which is eating 125Watts.
I have an Alpha on the other end which is doing this same lift in the primary loop, from the cellar, back up 12 feet to the boiler loop, running around 13gpm & moving water at 48watts. It's range is up to 19ft of head and 21gpm max.
My question is, can I get another Alpha and slip it into the Taco flanges I have already installed, or do I have to really break down the system and swap flanges as well??