Search: Posts Made By: radioconnection
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01-12-16, 09:11 AM
Replies: 2
Views: 429
Posted By radioconnection

109-503R anti-sweat valve thread size????

I need to find replacement parts for a new anti-sweat valve that uses compression fittings. One of the nuts for one of the three compression fittings had cracked. I tried several hardware stores,...
Replies: 64
Views: 6,023
Posted By radioconnection

Wrong style valves for throttling!!!! They...

Wrong style valves for throttling!!!! They should have used globe and not ball valves. If they are going to leave it running like that, I'd make them put the correct valves in.
...
Replies: 3
Views: 494
Posted By radioconnection

No, it was going from 15 to 20 at the highest...

No, it was going from 15 to 20 at the highest boiler temp, and that was also with the cast iron baseboards running hot as well.

I dropped the charge down to 10 or 12 pounds to reduce the stress on...
Replies: 3
Views: 494
Posted By radioconnection

Best quality boiler safety relief valve?

I lost a circulator pump on the return for the TV valve, which got the boiler pretty hot. Ended up replacing the pump, and then found the relief valve was dripping. Had a spare, and also replaced...
Replies: 5
Views: 751
Posted By radioconnection

My Multitherm has been running for 30 years. The...

My Multitherm has been running for 30 years. The heating coil is not in the fire box... in is inserted in the water chamber above the fire box.

The weak point of the design is gasket leaks, which...
Replies: 7
Views: 751
Posted By radioconnection

Sounds like a very generous supply house ;) ...

Sounds like a very generous supply house ;)

But, those boilers only hold three to four gallons of water. They were really designed to be used with indirect DHW tanks. There is no place to install...
Replies: 7
Views: 751
Posted By radioconnection

That does't make sense.... A Biasi triple...

That does't make sense....

A Biasi triple pass boiler does not use a DHW coil. They use external indirect tanks. These boilers only hold three or four gallons. They'd never hold enough heat...
Replies: 7
Views: 751
Posted By radioconnection

Boiler floor "blanket" for Biasi

What is the reason or need to add a blanket on the floor of a Biasi triple pass boiler? Does the blanket reduce condensation problems or improve the flame?
Replies: 26
Views: 4,434
Posted By radioconnection

Kool! I have a Dwyer wet kit myself... but I...

Kool! I have a Dwyer wet kit myself... but I still have a few bottles of new fluid. If the time comes, I'll investigate the KOH drain cleaner. I believe you can buy that in crystal form as well,...
Replies: 43
Views: 5,854
Posted By radioconnection

Here is what I have been running. The...

Here is what I have been running. The wood/oil/coal unit is an old VanVert boiler that I've had for about 30 years. It is mostly backup for the Biasi, which has a Tekmar ODR.

I burned wood for...
Replies: 7
Views: 1,978
Posted By radioconnection

There is a lot of crap in the boiler chamber......

There is a lot of crap in the boiler chamber... my Biasi has buildup, which is normal for cold start boilers, but that seems a bit excessive. Do you have cast iron baseboards? How long does it take...
Replies: 14
Views: 1,277
Posted By radioconnection

You're payback will be in improving the...

You're payback will be in improving the insulation and minimizing heat loss!

The only consideration for the minimum boiler size would be for recovery time for the domestic hot water!!! If the...
Replies: 7
Views: 852
Posted By radioconnection

Water in the indirect tank shouldn't reach room...

Water in the indirect tank shouldn't reach room temperature, and the return water to the boiler will be warm which will reduce condensation issues. That is one benefits of the indirect tank.
Replies: 8
Views: 2,981
Posted By radioconnection

You can run the 260 with a constant heat call.......

You can run the 260 with a constant heat call.... but that requires the internal room temperature sensor (model 077.) The NTC thermistor in the sensor will provide analog temperature feedback to the...
Replies: 15
Views: 1,373
Posted By radioconnection

I've been watching it run for a few days... the...

I've been watching it run for a few days... the Delta T is running about 20 degrees, and the supply is getting up to 160 degrees. Since most cold start boilers are going to be condense when they...
Replies: 3
Views: 1,041
Posted By radioconnection

Hi Furd I waited until the stack temperature...

Hi Furd

I waited until the stack temperature stabilized and also for the boiler to reach operating temperature.

One thing I was wondering was if the CO2 might be a bit on the high side. The...
Replies: 8
Views: 1,051
Posted By radioconnection

I am curious about your return temp target. Is...

I am curious about your return temp target. Is this boiler gas or oil fired?

Pete
Replies: 20
Views: 5,631
Posted By radioconnection

Do any of those circulators have built in IFC...

Do any of those circulators have built in IFC (flow check valves)? I've run into problems with the IFC equipped pumps on my heating system.
Replies: 3
Views: 1,041
Posted By radioconnection

Measuring boiler efficiency

I'm scheduled for a boiler clean out and tuneup early next month, so I figured it might be fun to get some baseline readings for comparison.

My gross stack temp is at 430 degrees F (I assume the...
Replies: 21
Views: 6,031
Posted By radioconnection

Is that mounted beneath a floor joist?? A...

Is that mounted beneath a floor joist??

A small amount of 60 Hz vibration can be amplified when the floor joist and flooring start to act like a giant loudspeaker cone.

Pete
Replies: 15
Views: 1,373
Posted By radioconnection

I'm still a bit leery with locking the return...

I'm still a bit leery with locking the return temp to 113 degrees F. I've seen a few boiler specs where the manufacturers want the return kept above 140 degrees. I guess the real test will keeping an...
Replies: 15
Views: 1,373
Posted By radioconnection

Bypass won't do it, the Tekmar 260 doesn't offer...

Bypass won't do it, the Tekmar 260 doesn't offer boiler protection. Scratch Plan A.

Sooo, I splurged and spend the coin on a new Danfoss TV cartridge. Went with a 113 degree cartridge. That solved...
Replies: 3
Views: 703
Posted By radioconnection

You lost me??? The Tekmar is responding to a...

You lost me??? The Tekmar is responding to a heat call when a zone valve closes.

Most triple aquastats have a low limit for the circulator to protect the boiler return temperature.

From what I...
Replies: 3
Views: 703
Posted By radioconnection

Tekmar 260 question???

Am I correct in that the 260 will immediately start the heating circulator when a valve does a heat call???

My thermic bypass valve is awaiting a new thermostat; and I am noticing my supply and...
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