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RobG

RobG

Joined on June 4, 2011

Last Post on August 22, 2014

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Tub Drain

@ March 27, 2014 1:13 PM in Tub strainer removal

I understand why you pucker when you see an old tub drain Ice. One of the biggest problems is the thin brass threaded tailpiece tubing (tends to just break at the threads and just spin). The newer rapid fit PVC drains are so much stronger. Older is not always better.

JMHO,
Rob

Sizing

@ March 26, 2014 2:45 PM in Gas piping

According to the charts in the Gastite manual that I will try to attach, the only way that you could do 24 feet of 1/2" piping (or equivalent length) might be to find a 6" pressure drop acceptable. In my neck of the woods the inspector would laugh at me if I tried to use that as an example. I'll stick with the .5" pressure drop tables.

http://www.gastite.com/downloads/pdfs/gastite_sizing_tables_natural_gas.pdf

Rob 

Boiler Parts

@ March 26, 2014 1:18 PM in Munchkin replacement

I did a search on google for "Munchkin boiler replacement parts" and came up with a bunch of sites that have them. here is one:

http://www.radiantheatproducts.com/store/cart.php?m=product_list&c=63

Rob

Is there?

@ March 26, 2014 1:04 PM in Old Wirsbo Maifold - retire line and cap

Are snowmelt systems used for roofs? I can see where it could come in handy in some areas where there is heavy snowfall, however I have never heard it discussed here.

Rob

why?

@ March 26, 2014 12:51 PM in Want opinions on heating detached garage

If the garage is its own zone, why not use the boiler for the house to heat it? Even if it is a detached garage it may be cheaper to run insulated pex underground than to install its own heat source.

Rob

Where to start?

@ March 22, 2014 3:40 PM in Radiant floor.com

Run Forest Run, Run as fast as you can and never look back!!! In lieu of that, Sawzall surgery, cut it all out and start from scratch with a proper room by room heat loss. Add a gas cock while your at it. Isolate the domestic from the space heat. It looks like they jackhammered the floor to fit the expansion tank that is in the wrong place. It looks like the pex goes through a hole in the ceiling that was made with a hammer. And install a boiler, use the tankless water heater as a water heater. If this is an Internet lead I would RUN. 

JMHO,
Rob

Munchie

@ March 22, 2014 3:18 PM in Munchkin replacement

I would follow Bob's advice. You will make better use of your credit card on the heat exchanger than you will just buying parts.

Rob

Beautiful Work

@ March 22, 2014 2:39 PM in Weil-McLain & Caleffi Installation

Beautiful work! As usual, the mechanical room was an afterthought to the architect. Is there even room to replace the equipment down the road?
Rob

What Charlie said

@ March 21, 2014 5:21 PM in Ornate Cast Iron Radiators

Hence the fact that there is no boss in the top to tap a vent, strictly steam.

Rob

What SWEI Said

@ March 21, 2014 5:05 PM in Want to move from oil to gas boiler. Best way forward?

What SWEI said is absolutely correct. As well, see the post in this forum titled gas piping.

Rob

Tim

@ March 21, 2014 4:59 PM in Gas piping

Tim, have you heard back from Navian? It will be interesting to see how (if) they say they do it.
I agree, someones doing fuzzy math. (that's why I said only if the unit was mounted one foot away from the meter). It's interesting what the (no ofense intended) typicaly Japanese manufacturers will claim to sell their product, and how many people beleive them. At several training classes I have been told how if you turn up the tankless temp and mix it down, you will get more hot water, WTF? A BTU is and will always be a BTU. That will work with an indirect or tank type water heater, but not a tankless.

JMHO,
Rob

Not to

@ March 21, 2014 3:40 PM in Munchkin replacement

Not to hijack the thread. Bob, who is the ECR distributor in the area?

Rob

Agree

@ March 21, 2014 2:39 PM in Warmboard on slab versus PEX in slab

I agree totally with SWEI, you are already pouring the slab, it would be a waste of money to put warmboard over it. Just make sure that you insulate under the slab (the more insulation means less heat loss). The only reason not to put the tubing in the slab would be if you have a very high water table. If that were the case I wouldn't bother excavating anyway.

JMHO,
Rob

Panel Rads

@ March 21, 2014 1:49 PM in Please critique this design

It sounds like you plan on staying in the house for some time and money does not grow on trees. As time goes on you would be wise to slowly change out the baseboard with panel rads and TRV's. If you do it one zone at a time, by the time you are done you can crank the temp down and run the boiler at true design temps. Panel rads operate at much lower temps and do not clog up with dust ( they look better and take up less space as well).

JMHO,
Rob 

Gas piping

@ March 20, 2014 2:56 PM in Gas piping

Tim, A previous post got me curious so I went to Navian's website to investigate. Here is their claim:

Better Adaptability to Gas Systems
The Negative Pressure Gas Valve and Fan with Dual Venturi operation allows for better adaptability to low gas pressure applications. This industry leading technology makes it possible for the NPE to be installed with 1/2" Gas Lines up to 24'.
Easy residential tank replacements.

Maybe if the unit was mounted a foot away from the meter and had no fittings.
Or am I missing something about their "Negative Pressure Gas Valve and Fan with Dual Venturi" that defies everything that I have ever learned about sizing gas piping.

Please explain.

Thanks,
Rob

Slant Fin

@ March 20, 2014 2:32 PM in gas valve on slant fin

Is your boiler connected with black iron pipe or corrugated stainless steel? Gas appliances with CSST or a flex connector will sometimes howl because of the piping. It can be corrected. And as Tim stated, it does need to be set up per the manufacturers instructions. What water temps are you running?

Rob

Let me guess

@ March 16, 2014 2:46 PM in Has a sink hole ever tried to swallow up a boiler you service?

Let me guess, the "building engineer" kept cranking up the pressure to "fix" the heating problem and blew out the traps. Then the owner nickle and dimed you on the re-pipe, then took nintey days to pay and only wants to take care of the traps in the apartments where people complain? No?


Rob

Tim

@ March 16, 2014 12:57 PM in Has a sink hole ever tried to swallow up a boiler you service?

What is the building used for?
Beautiful piping by the way, It's a shame that you did all that work just to see the boiler get swallowed.
Let me guess, he's getting bids from the guy who did the original install.

Rob

Red tag

@ March 15, 2014 5:57 PM in Has a sink hole ever tried to swallow up a boiler you service?

As Steve notes, the gas and flue are compromised. I would shut it down until they decided to have it fixed. If you touched it last, you own it.

JMHO,
ROB

Stop!!!

@ March 14, 2014 11:08 AM in Mono Flow Issues

If you had a contractor out to work on your system he should have been prepared to troubleshoot it. Since he was not, I would find another company! Unless I am giving an estimate on a new system I always have my service truck (and even then I am usually in it). Where are you located? Use the "Find a Contractor" section on the site to find someone in your area.

You really should get that boiler replaced come Summer. Just don't have the guy who showed up without the equipment to do it.

Rob

Posting

@ March 14, 2014 10:47 AM in General steam trap question

You should post this question in the "Strictly Steam" section, you will get a lot more help there.

JMHO,
Rob

No Habla

@ March 11, 2014 2:52 PM in What's wrong with this?

No habla Ingles.

At least he dripped some primer on the 90.

Rob
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