Munchkin and condensate neutralizer.

hr

was a 9700 square foot farm and feed store. I fired it up Saturday afternoon to a 41° 5" thick concrete slab. By this morning the room was at 62° (setpoint)

I was a bit nervous about my calcs when I went with a 199,000. The owner kept asking about "how small" the unit was.

The other two bidders had a 300,000 and a 600,000 boiler in their bids!

I built the condensate neautralizer with 1-1/2" PVC fittings. I used sch.80 PVC barbed adapters, to connect the vinyl hose. I used a barbed tee at the back of the Munch, instead of the "drilled" coupling.

It's built like an old bathtub drum trap. I filled the tube with various sized limestone gravel. I imagine any clean stone would work.

I dated the install (Valentine Day) to see how long the gravel lasts.

hot rod

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Mark Eatherton

Like a lime stone cowboy... (Glen Campbell)

HR, HTP originally used lime stone in their neutralizers. We ran into some problems with the limestone blocking the outlet of the cartridge and causing the condensate to back clear up into the combustion chamber.

We have started making our own pH neutralizers using crushed landscaping marble. For less than 10$ you can set up a 5 gallon bucket FULL of crushed marble and it DOES neutralize the pH. Just make sure you set it up as you described, so that you get some god contact time.


ME

Unknown

PVC Neutralizer

That's a nice one hr. I've started to build my own as well.

Here's one that I saw at Viessmann's RI training center. I like being able to see the medium. Would like to make one like this. But, I can't sem to find the clear tubing & fittings to make one up. They get over $300 for their model.

Gotta love that Rhomar 922

Gary

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Alan(CaliforniaRadiant)Forbes

Curvo

Super job, hot rod. You sold me on the Curvo machine.

I called my Rems supplier; seems the unit comes with bending attachments from 3/8" - 7/8" and an add-on for 1-1/8". Not cheap ($1,100 my net), but it looks like a tool that would find a lot of use. I'd be the first one on my block to have one.

Thanks for sharing.

P.S. Working on Valentines Day? Ellen must've been out of town to let you get away with that.

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Paul Rohrs

Off the wall. (Munchkin \ Pinnacle)

As I see (sell) these highly efficient boilers with the pvc flue, I wonder would a DWV copper flue dissipate the heat more quickly giving us more condensate and raise the efficiency? Or will it eat through the copper like my 12-year old with a pizza in front of him?

regards,

PR

Paul Bock_2

I would think that

the copper would react badly with the flue gas. But assuming that it would work, it would have to raise the efficiency a phenominal amount to offset the cost of a copper install. Paul.

hr

You will get

your money's worth! It's my most used power tool! And it is now a work only tool.

Built some plumbing art, ladder hooks, railings, racks for the trucks.......

hot rod

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hr

Yeah, it's a ph game.

Tom mentioned how a brass tee on the condensate drain connection lasted but a few weeks.

I wonder that AL stainless steel flue pipe would work? Isn't the Viessmann a plastic stainless combo?

I think the PVC helps deaden the whirl of the blower a bit, perhaps. Same reason for the molded dense enclosure. Soon to change I've heard

hot rod

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ScottMP

HR ?

What is the Rhomar 922 ?

Sounds like the old U32 disintergator modulator from Bugs Bunny

I must have missed those post.

Nice work, I like the neutrealizer. Thats somthing we have not been addresing. Do you really need that much contact time ?

Scott

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hr

On the condensate issue

this particular job had one bathroom and one sink connected, via PVC, to a concrete septic tank. I worried about the condensate in that tank, working it's magic

Previous Munchkin installs were on new homes, again PVC drains, but connected to public sewer systems. As such I feel with a neighborhood full of kind folks washing, flushing and scrubbing their troubles away, I'd have plenty of "dilution waters" flowing along for the ride.

Now if all the neighbors have condensing equipment.....

The care and treament of small high intensity heat exchangers is CRITICAL. Copper tube boilers have taught me this lesson over and over. With this in mind I run a cleaner for at least an overnight, then add a good quality multi metal conditioner, and DI water, to protect those HX in-nurds from scale and build up. Pretty small passageways we are dealing with in those units. A few mils worth of build up we really throw a wrench in the HX process. I predict this to be the biggest bugaboo with any small, thin, tightly wound HX equipment. It's a cheap, easy, fun to do step to protect my reputation and the owners investment.

I'm even considering a "construction Munchkin" that would be used during the building portion of the home them swapped out with a brand new unit at move in time. I'll use a standardized flange to flange connection for easy switch outs.

A lots of "bad mileage" gets put on these units as they suck sheetrock, and fine sanding dust all winter. Ever see where hardwood flooring sanding dust ends up?

hot rod

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George_10

Rhomar 922 is

our treatment product specifically formulated for hydronic systems. It handles a myriad of chemical problems that are various metals, water and oxygen related.

Our cleaner product Hydro-Solv 9100 is recommended to be used to clean the system and then the treatment product. Check out www.rhomarwater.com under hydronic products for a full benefit and tech disclosure.

Any other questions give me a call at 800-543-5975

George Hunt

Earthfire

Transparant PVC

Available from MSC Industrial Supply 800 645 7270 www.mscdirect.com 3" part #36914513, 4" part #36914521 They list 1/2" thru 8" sizes. Schedule 80 pvc pipe is cheaper but you can't see thru it.