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Joined on November 26, 2011

Last Post on July 30, 2014

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I'm curious

@ June 20, 2014 11:28 AM in Oil to Gas conversion

what kind of excess air numbers the Midco LNB is producing.  We see near-perfect combustion from that type of burner in other applications.

I've posted about it here a few times

@ June 20, 2014 11:16 AM in Aquatherm piping

I'll repeat one of them here:

is our preferred choice for sizes over 1" nominal for both hydronic
heat/cooling and DHW.  If the largest pipe in the job is 1", we specify
ProPEX for everything.  On larger jobs, it's still easier to use PEX for
the small stuff and transition around ~9 GPM to Aquatherm.  The
flexibility and cost of saddle welding are tough to beat.  Watch out for
the transition fittings -- over 1" they get spendy fast.

I'll shoot you an email with my cell number if you want more details.

Is there a drop ceiling?

@ June 19, 2014 8:56 PM in Ductless Split Head Placement

If so, I'd probably opt for a four-way cassette.

Concentric vents

@ June 18, 2014 3:54 PM in concentric termination relative to dryer vent

are a solution of last resort for me.  A wall intake with a roof vent is the go-to solution whenever possible.

Dow Corning 340

@ June 18, 2014 3:51 PM in Hot Radiators

Thanks -- we'll give it a shot.  Gave up on the magic silver stuff years ago and have been using the tiny tube of something Intel sent way back when. 


@ June 18, 2014 11:58 AM in Made in America

Think I'll stock up on those next time we run out.

Thermal grease

@ June 18, 2014 10:58 AM in Hot Radiators

Got a brand you like?  I'm looking for some and the computer type is $$pendy.

Correct on all counts

@ June 16, 2014 3:37 PM in Volts x Amps x Power Factor = what?

Power companies meter kVA and kVAR on medium to large commercial and industrial accounts.

The right answer here IMO

@ June 13, 2014 9:19 PM in TRV, with remote sensor or no?

is proportional zone valves paired with modern controls.  Standard practice for DDC jobs, but unfortunately not available for off-the shelf residential and light commercial applications, at least in North America -- yet. if anyone is interested.

Restoring the system

@ June 13, 2014 8:50 PM in Steam-Heated Hotel!

> The manager I talked to, one of the family that owns the hotel, is not
opposed to restoring the system. He says he will have us come up later
this year, and this time we'll have full access.

> I hope we got to this in time.

So do we!

Ultrasonic or metal detecting stud finder

@ June 13, 2014 8:42 PM in Returns covered by the Sheetrock

will usually find the sheetmetal if it is close to the drywall.

Not sure how the boilers are oriented

@ June 11, 2014 5:01 PM in President

but if they are crossways to the joists, you might be able to tuck the risers into the joist space and then drop down for the header.

I'd seriously consider a slab cut and a well, at least for the larger boiler.

If this were my job

@ June 11, 2014 4:47 PM in Typical venting for high-efficiency wall-hung boilers?

I would size it, design it, and then get a letter from the Mechanical Bureau accepting the proposed phased construction approach.  Then pull a permit, install the vent and probably the NG line for the boiler, and have it all inspected.

Your electric meter

@ June 11, 2014 4:40 PM in Volts x Amps x Power Factor = what?

reads true wattage, and properly accounts for power factor.

The separate demand load (kVA) and reactive load (kVAR) charges on a commercial account cover the utility's butt if you are doing bad things to the grid.


@ June 10, 2014 7:17 PM in Radiators

and you can prove it with an IR gun.

Powerfactored already?

@ June 10, 2014 7:16 PM in Volts x Amps x Power Factor = what?

Not quite sure what that means, but more importantly what are you trying to calculate?  Conductor size?  OCPD size?

Got it

@ June 10, 2014 10:58 AM in Sizing New Gas Steam Boiler

Can't find a spec sheet on the Bryant, but the IOM is online.  262 MBH NG firing rate, 671 square feet.  I know Joe has been doing a lot of 2-stage firing lately and look forward to hearing more.

Which 8-section boiler?

@ June 9, 2014 5:16 PM in Sizing New Gas Steam Boiler

Just curious, and want to compare square feet so I can wrap my head around this.


Whose vent?

@ June 9, 2014 5:08 PM in concentric termination relative to dryer vent

Every I & O manual I have seen is quite clear on the specifics.

Just to recap

@ June 9, 2014 10:05 AM in Sizing New Gas Steam Boiler

for those of us who got lost along the way.  Which boiler did Joe recommend, and do you still have 325 square feet of EDR to heat?

Lots of options

@ June 9, 2014 12:13 AM in Phone Call or Email From Boiler Alarm Contacts

Assuming you don't have any existing infrastructure, might work.

A 33% pickup & piping factor

@ June 8, 2014 10:48 AM in Sizing New Gas Steam Boiler

is already included in the boilers square foot rating.
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