Vigas 100Kw, first fire tomorrow.

[JP11]

After seeing how little wood my Vigas used compared to his CB.. my plumber bought a 100. He's plumbed into a few thousand gallon tank.

Will be my third startup now. My 60, a friends 45, and now this 'big boy'

I've been preaching the gospel on dry wood... and will be bringing my MM to 'inspect' his supply. I figure 20 minutes to get thru all the settings and double check.. and we'll be off to the races after that.

JP

 

[Karl_northwind]

Photos!

 

[TCaldwell]

This is what you call old mans sex!

 

[Fred61]

Photos!

This is what you call old mans sex!

Boiler porn!

 

[Karl_northwind]

While we're waiting........
this is at Eauzonedan's place from last fall. fear not, there is a wood boiler ( GARN 1500) on the far end of the two pipes at the right top of the photo.

 

[velvetfoot]

What is the name for that heater? Is it a wall hung l.p. gas condensing boiler? (A guess on my part.)

 

[Karl_northwind]

yes, that's a triangle tube 110,000 BTU condensing gas heater.
it's my gold standard for LP boilers.

 

[JP11]

Well.. Vigas worked as designed.

I 'called' the one issue before startup. No 'throttling' valve on the bypass line. So.. it just 'short cycled' around the boiler and didn't push water to the tanks.

BUT.. boiler worked as it was intended. Heated, gasified, controlled the burn, idled on max.

I guess he should have come back and taken a look at how I had him do mine. I pointed out to him that a couple more temperature wells would be nice so he could SEE what temp is where.

JP

PS.. oh and his 'good' wood was 25 to 28. He's finally a believer.

 

[skfire]

first "boiler porn".......then "good wood"....
I am outta here...

...I have to catch up..I am waaaaaaaaaaaaaaay behind on 2016 fall+ supply..

Scott

Well.. Vigas worked as designed.

I 'called' the one issue before startup. No 'throttling' valve on the bypass line. So.. it just 'short cycled' around the boiler and didn't push water to the tanks.

BUT.. boiler worked as it was intended. Heated, gasified, controlled the burn, idled on max.

I guess he should have come back and taken a look at how I had him do mine. I pointed out to him that a couple more temperature wells would be nice so he could SEE what temp is where.

JP

PS.. oh and his 'good' wood was 25 to 28. He's finally a believer.

 

[BoilerMan]

While we're waiting........
this is at Eauzonedan's place from last fall. fear not, there is a wood boiler ( GARN 1500) on the far end of the two pipes at the right top of the photo.

I installed a Vitodens 100 last week, my gold standard.

BTW, nice piping job.....whats up with the extension cord powering the Taco switching relay?

TS

 

[velvetfoot]

Isn't that going to a pump?

 

[Willman]

While we're waiting...

A real work of distribution and control art no matter the heat source. Even signed in the lower right hand corner! Sweet job.

 

[Karl_northwind]

There are 2, one for the taco relay one for the grundfos alpha. the customer was responsible for the AC wiring and hadn't gotten it done as of the time of the photo (and my leaving) and so the cords were for startup checking out and nothing more.
I do like making pretty piping
so where are those vigas photos????

 

[Karl_northwind]

the customer's BIL insisted that I sign it.

 

[JP11]

I haven't been back for another run of the vigas. they changed the piping.. and same results. I told them to re check their pump curves and do the math themselves. The supply house guy isn't doing them any favors. "it should be fine" and 40gpm. Yeah.. I don't believe either statement.

JP

 

[velvetfoot]

Bypass line? Isn't that for when the boiler is cold and involve a boiler protection valve?

 

[JP11]

Bypass line? Isn't that for when the boiler is cold and involve a boiler protection valve?

Yes. They do have a boiler protection valve on there. They did not however put a ball valve on that line for 'throttling'

At first I thought that was the only issue. However, it seems the pump was sized too small. Just my semi educated guess watching the boiler perform.

JP

 

[velvetfoot]

Yes. They do have a boiler protection valve on there. They did not however put a ball valve on that line for 'throttling'

At first I thought that was the only issue. However, it seems the pump was sized too small. Just my semi educated guess watching the boiler perform.

JP

I don't understand, but that doesn't matter. I'd think that once the water got hot enough, it'd go to the tank. Why the need for a throttling valve? If the water cools off, you'd want it to recirculate through the boiler.

 

[maple1]

I don't understand, but that doesn't matter. I'd think that once the water got hot enough, it'd go to the tank. Why the need for a throttling valve? If the water cools off, you'd want it to recirculate through the boiler.

I've been there too (not understanding that). I assume its a Danfoss? Apparently they require one, or some do - Imo somewhat of a bandaid solution. Loading units are kinda pricey, but they sure do work nice.

 

[JP11]

My uneducated guess of 'why' is the spring in a danfoss type valve is not really strong enough to FORCE the water to the tank when hot. Instead, the 'throttling valve' as I call it is used to match head pressure between the short little 'loop' line around the boiler (where the water would circle until it got to temp) and the longer line to storage in back.

Once you have the valve set, you never change it again. The head pressures are matched, and the Danfoss valve then works as you think it would.. controlling input temp to 140 degrees.

JP

 

[velvetfoot]

I didn't realize that.

Apropos of nothing, I found this video of one of our own forum members explaining boiler protection valves. I used the ThermoMix valve. I never knew what those holes were for on the valve. Now I know they're wells for gauges!

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[Chris Hoskin]

Just FYI, the most current version of the Termovar mixing valve (LK823) no longer requires the balancing/throttling ball valve.