Pex Solar Water Preheat Project

Daox · 05-08-12, 10:27 AM

I'd say its definitely not enough pump for this application. 16 feet is 4.87 meters. The DDC3.2 is the newer pump design so thats what you'll probably get. It can't even pump up to 4.8 meters. You could use two of them in series though. That would give you double the flow rate at the same head, so at 4.8 meters you should have somewhere around 300 L/hour or 1.32 gpm. Then you have to add in the friction losses from the piping so it'll be lower than that.

According to some guesstimating on my part that doesn't sound like nearly enough. I think my 200sqft array will need between 5 and 10 gpm.

05-08-12, 10:27 AM	#11
Daox Administrator Join Date: Aug 2008 Location: Germantown, WI Posts: 5,525 Thanks: 1,162 Thanked 374 Times in 305 Posts	I'd say its definitely not enough pump for this application. 16 feet is 4.87 meters. The DDC3.2 is the newer pump design so thats what you'll probably get. It can't even pump up to 4.8 meters. You could use two of them in series though. That would give you double the flow rate at the same head, so at 4.8 meters you should have somewhere around 300 L/hour or 1.32 gpm. Then you have to add in the friction losses from the piping so it'll be lower than that. According to some guesstimating on my part that doesn't sound like nearly enough. I think my 200sqft array will need between 5 and 10 gpm. __________________ Current project - To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. & To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Last edited by Daox; 05-08-12 at 10:31 AM..