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1

Plumbing / Re: Another pump replacement needed

« on: October 28, 2015, 08:20:41 PM »

Thank for the info, I will leave this one on for now and keep an eye on the temps as the weather starts getting colder. The 26-99 are a stock pump so   I can swap it pretty quick if needed:)

2

Plumbing / Re: Another pump replacement needed

« on: October 28, 2015, 01:00:06 PM »

Was running it on 2 speed.

3

Plumbing / Another pump replacement needed

« on: October 28, 2015, 10:40:02 AM »

My pump from my OWB gave up the ghost a few nights ago and I had a spare on kicking around to keep me going for the time being.

The pump was a Grundfos UPS 26-99 that died and I am not positive if this size of pump is needed or not.  Originally the OWB was installed with a pool heat exchanger which I changed last year and now have a 50 plate between my OWB and the boiler in the basement.  The OWB is just over 50' from the house.  The spare one I am using now is a 15-58 which seems to be working efficiently, mind you it hasn't been cold out yet so I am not sure if it is truely big enough when the need arises.

Any recommendations is greatly appreciated.

4

Plumbing / Re: Replacement pump - Grundfos Alpha pump?

« on: October 17, 2015, 08:18:53 PM »

So I finally got the Alpha pump installed and just curious how in auto it pumps 6gpm at 26 Watts and in speed 3 it pumps 6 gpm at 43 watts...why the difference?

5

Plumbing / Re: Replacement pump - Grundfos Alpha pump?

« on: October 02, 2015, 12:24:44 PM »

Thanks, I ordered the Alpha pump in:)

6

Plumbing / Replacement pump - Grundfos Alpha pump?

« on: September 29, 2015, 07:04:06 AM »

Good day all, I have to replace one of my circ pumps in the house.  Currently it is a Grundfos UPS 20-42 (Running on 3 speed) and was told the replacement would be a 15-58FC. 
The pump is for my second floor zone but I am in the process of renovating and am thinking of changing over to seperate zones through out the house. (Last winter was my first winter there and with one zone up and 1 down stairs I had cooler rooms and hot areas so would like to zone for better control in each room)

My question is, am I better off to spend a little extra money now on an Alpha 15-55F which would work now and would work after zoning (Or won't work)? Or is there a better pump recommendation or just stick to the 15-58FC for now?

Thanks,

7

General Outdoor Furnace Discussion / Re: Soft vs Hard wood - Worth the switch

« on: July 10, 2015, 12:15:49 PM »

Ok thanks for the replies, last year it was mostly pine and spruce and looking at mostly oak this year. I think ill take the plung and hope for the best.  Ill make sure i have access to additional wood over the winter just in case though:)

8

General Outdoor Furnace Discussion / Soft vs Hard wood - Worth the switch

« on: July 08, 2015, 12:02:45 PM »

I am using a small wood doctor that is about 10 years old now to heat up an old 1500sqft farm house.  Last winter (my first there) I burned all soft wood cut and went though just over 20 cord and was debating if burning hardwood would make that much of a difference in the wood consumption.  I see alot of guys on here burning 7-8 to 12 cord a year with similar heating requirements if not more than I am.  If my consumption reduces by half with hardwood it would certainly be more cost effective.

Thoughts?

Thanks

9

General Outdoor Furnace Discussion / Re: Lack of heat through heat exchanger

« on: December 02, 2014, 06:43:13 AM »

Well I installed a 50 plate exchanger and workes so much better.  195 in and boiler sits at 190 now.  Drops to 170-180 when a zone opens and recovers quickly from there.  Thanks for the assistance in solving this issue!  The heat from the baseboards is incrediably different now!!

Thanks again!!

10

General Outdoor Furnace Discussion / Re: Lack of heat through heat exchanger

« on: November 20, 2014, 11:44:26 AM »

Here is the 2 exchangers I was quoted, the 50 plate one is 50.00 cheaper and I suspect the better one to go with but just want to check first.
A M25-30 will do 200.000 btu/hr. with 20 gpm and 180 degree boiler water. An M31-50 will do 170’000 btu/hr with 180 degree water.

Thx again!

11

General Outdoor Furnace Discussion / Re: Lack of heat through heat exchanger

« on: November 19, 2014, 01:03:48 PM »

So my local dealer has recommended and priced me a M25-30 which is a 30 plate 20x5" exchanger for $600.00.  A little pricy but will this be suitable or should I stick to a 50 or 60 plate 12x5" for $300.00 - $400.00?

12

General Outdoor Furnace Discussion / Re: Lack of heat through heat exchanger

« on: November 19, 2014, 06:52:23 AM »

Ok thanks for the info, so I should probably change the circ pump feeding the exchanger from my oil boiler as well so it is feeding the exchanger correct, or not as much of a concern where it is such a small loop?

13

General Outdoor Furnace Discussion / Re: Lack of heat through heat exchanger

« on: November 18, 2014, 06:54:33 PM »

OK perfect, I will be replacing the exchanger as soon as I get one sourced. I will be pricing though the local dealer, and Crane. I am not sure the prices yet,but good to hear eBay ones are an option. I will go with a min 50 plate, but would it be worth my money to go larger and if so, how big would be ideal? I don't mind spending the money to make it right.

Sorry Slimjim, I did the drawing while at the office today and didn't draw in the expansion tank correct, it goes into the top of my boiler and has a cold water line connected to it to fill, and the cold water line that goes to the OSB line is just to top up the water in it. My DHW is heated through my boiler. I will also switch the circ pump around to the other line when I change the exchanger.  Can I ask why that would make a difference?

14

General Outdoor Furnace Discussion / Re: Lack of heat through heat exchanger

« on: November 18, 2014, 08:42:18 AM »

Slimjim, here is the line diagram of my system.  Let me know if something doesn't make sense or if there is something not right about the installation so I can get fixed when I replace the heat exchanger. 

I noticed on e-bay there is some 40 and 50 plate exchangers on there for around $250.00.  Would I be safe with one of these or worth spending double to purchase through our plumbing supply shop here?  Since I am spending the money now, what size of exchanger should I be going with.  I want to ensure I won't have to change it again down the road so going with a little oversized is no problem if recommended.

I added the line diagram here:

http://s48.photobucket.com/user/davidhymers/library/Wood%20doctor

15

General Outdoor Furnace Discussion / Re: Lack of heat through heat exchanger

« on: November 17, 2014, 07:44:48 PM »

I didn't get the line drawing completed tonight but I did measure up all the baseboard and radiators.

First floor 800sq ft with 47' baseboard and a 10 column radiator. I calculated this to be approx 32,000btu.
Second floor 1068 Sq ft with 59'baseboard and a 14 column radiator. I figured this to be about 42,000 btu.
I am also looking to drop in another cast iron radiator in the workshop soon.

Currently I have 2 zones, 1 up and 1 downstairs.

I will get the line diagram of the boiler system posted tomorrow.