Just say HI!! to everyone and sharing some pics of my AA260m

This is one from when we moved in with the AA hooked to the Gravity piping and controls that were way hooked up wrong.


This is one shortly afterwards with a few things fixed. I ran it this way the 06-07 season


now the present 07-08 season.

Now that is what I call a heat plant!

How long did it take you to do the conversion, looks like a fair amount of work!

A very impressive array of B&G circulator pumps!!! How far and how high are you pushing the hot water??

Was the old system with the single Taco 007 pump [looks like it] not able to keep up with heat loss at the radiators/baseboards?? The water getting back to the boiler was very cool/cold??

Nice job!!
Greg L.

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Matthaus wrote:Now that is what I call a heat plant!

How long did it take you to do the conversion, looks like a fair amount of work!

took about 2 month working off and on to get the old iron out along with the asbestos. and to put back in about 450 ft of copper pipe.

LsFarm wrote:A very impressive array of B&G circulator pumps!!! How far and how high are you pushing the hot water??

Was the old system with the single Taco 007 pump [looks like it] not able to keep up with heat loss at the radiators/baseboards?? The water getting back to the boiler was very cool/cold??

Nice job!!
Greg L.

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the Boiler is central in the house but it is a two pipe setup with 3 zones done my circulators . at the moment the height and length elude me but I have them wrote down at home which I can fill in later. the old system had one BG HV, two taco 007 pumps, with the new system setup it has a HV for the upstair zone and a series 100 for the two lower level zones.

You must have a great chimney, that baro looks like its at its limit!

I'm sick with jealosy, an AA 260M and all that B & G.

coaledsweat wrote:You must have a great chimney, that baro looks like its at its limit!

I'm sick with jealosy, an AA 260M and all that B & G.

12" and about 30ft or so high. I have excessive draft..... during windy nights last year I saw 265 on the boiler and with the pumps being on the return side the water went to steam in the rads. ..... not fun to wake up to at 3am

With that big of a chimney, maybe you want to go with a bigger baro. Your losing a lot of heat that way.

Very nice job!

I noticed you installed ball valves to isolate the B&G's. Good idea, if you have to service one you don't have to shut down and drain the system.

The old B&G 100 series were very well built. One ran the system in my parents house from 1951 to the mid 1990's. The ceramic pump seal failed during the cold weather and I just replaced it with a new one to get the furnace back on line. That pump failed about 3 years ago, the seal leaked and the shaft on the pump froze in the bushings. The unit is not serviceable, I had to replace it again. I still have the 1951 pump and motor, with a new seal it will probably outlast the new ones.

With the high winds and strong draft, was the 'inspection plate' being pulled closed by natural draft? Like the fan induced draft does??? Maybe a spring to push the arm that the plate hangs on away from the boiler, just enough to keep natural draft from pulling the plate shut..

How many years have you opperated the AA boiler? I'm installing mine over the next few weeks. It is in an outbuilding, not in the house.

Greg L

LsFarm wrote:With the high winds and strong draft, was the 'inspection plate' being pulled closed by natural draft? Like the fan induced draft does??? Maybe a spring to push the arm that the plate hangs on away from the boiler, just enough to keep natural draft from pulling the plate shut..

It would never suck shut but it would swing a little and i mean a little.

LsFarm wrote:How many years have you opperated the AA boiler? I'm installing mine over the next few weeks. It is in an outbuilding, not in the house.

Greg L

This will be my second year with it and I love it and I'm thinking of buying a new one to just have on had when this one goes years down the road. So while there still made I'm going to pick one up. The heat off the unit just sitting and running mainly running is absolutely amazing. So it heats the house when the therm is not even calling for heat, the floor in the room above it is warm even when the other are cold.

Here is the lastest picture of the AA260m with the NRF22 "baby pump" which is used by the AQ251 controller for a bypass when return water drops below 140F. The system is also configured with a post purge cycle of 2:00 minutes for system cool down and that drops the over rides to pretty much nill. Also I've been able to finaly get the unit painted a bit, not done but aleast started.

Very nice set up. I like it.

Really neat setup. Why all of the bx cable? Is that local code or just additional safety. My oil burner, circulating pumps, etc are wired with romex and passed inspection. Of course that was 12 years ago so maybe something has changed. Are you getting any vibration from the allthread rod you have attached from the manifold to the floor joist? I have a blower unit in my basement/garage that is suspended that way. When it kicks on it rattles everything in the dining room directly above it.

Now that's how you heat a home. Great job.

Those pumps look like soldiers standing attention !! Really nice neat, square plumbing job.

Greg L

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