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nicholas bonham-carter

nicholas bonham-carter

Joined on November 24, 2007

Last Post on August 28, 2014

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Upgrade to DVD's

@ August 28, 2014 7:40 PM in the latest on Boone, NC CO poisoning

They did that's why they were able to spare the VHS tape!--NBC

Needle in a haystack

@ August 28, 2014 6:45 PM in Bryant 244-7 Series A Gas Steam Boiler

Finding old discontinued boiler sections will be very difficult. Anyone who has been keeping old sections has been doing so because he thinks they are VERY Valuable!. The amount of work to replace them , if you could find them would be more than installing a preassembled boiler.
Why not add up the EDR of your radiators and then we can help you find an appropriately sized boiler from pex supply or some such place. Do not go off the plate from the old one, but measure the rads.--NBC

Ice bucket ok

@ August 28, 2014 6:35 PM in the latest on Boone, NC CO poisoning

Video cassette will never meet code.--NBC

Main vent placement

@ August 28, 2014 6:33 PM in What is the solution?

That looks like the boiler header, which is not the right place to put a main vent. Examine the returns, and put the vents on the end about 12 inches in front of the drop. The vent needs to allow the air to escape from all the supply piping, and the return is benefitted by air removal as well.--NBC

Sufficient steam pressure

@ August 27, 2014 10:51 PM in new burner for old boiler?

If your system is well vented, with adequate main vents, you will only need a couple of ounces of pressure. How much have you been attaining up to now?--NBC

Oil to gas

@ August 27, 2014 6:35 PM in BTU needed on Oil to Gas convesion

Is this steam or hot water? Do you have enough gas capacity?
Use the SlantFin app from their website to figure the heat loss of your house, and that will be the BTU size for heating, for hot water only. Steam systems need a different method of calculation.
For the domestic hot water load, tell us what your usage is ( number of showers, and washer runs) you do each day.--NBC

off season boiler treatment

@ August 26, 2014 8:06 PM in low pressure steam boiler - conditioning

I would say that leaving the old water in the boiler, is most beneficial. some people will overfill the boiler, and boil it briefly to remove oxygen, before the final shutdown.
if you put chemicals in the boiler, then you would have to remove them before firing it up again.--NBC

Warm skin

@ August 26, 2014 6:25 AM in Scorched Air vs Hydrocoil

If you are sitting in the sun, you will be warmed by heat waves, feeling more comfortable, without a lot of air moving across your skin.
If you are sitting in front of a hot air supply duct, you will be warmed by the contact between your skin and the air. Such a large volume of air will be flowing across your skin, that more drying will take place (think hair dryer). I think this is the principal reason for adding more humidity to the air, especially when there is a lot of infiltration of dry outside air.--NBC

Piping geometry

@ August 26, 2014 6:13 AM in Swing joints. How do they work?

A happy, and informative time can be had at the hardware store, trying out different combinations of 90's, and 45's to get an idea of how stiff piping can be made to go between 2 points without using a single straight line.
Ice, why not go the hardware store, and put some joints together, and take a picture of them so we can see what your friend showed you.--NBC

What radiators

@ August 26, 2014 6:04 AM in Heating dilemma: Recessed radiator vs cast iron baseboard

I have seen steam heat in old Florida hotels, such as the Gasparilla Inn on Boca Grande.
In your house, you could see if the insulation could be upgrades in the walls and ceiling, and leave the windows in original, but restored condition.
For a given room and it's heat loss, steam radiators can be smaller, as a result of the higher temperature of the steam, compared with hot water. So first priority is to do a room-by-room heat loss survey, using the App from the SlantFin website. This will tell you what length of baseboard rads will be needed, so you know whether they will fit into the recesses already in place.
Hot water heating will give you some options which are not available with steam, although it is not necessarily "better" than steam. Outdoor reset which is the ability to vary automatically the hot water temperature with the outdoor temperature is one feature, and less obtrusive piping in the basement is another.--NBC

install main vents fiurst

@ August 25, 2014 3:08 PM in Adding longer baseboard steam radiators

I am assuming that the baseboard radiators were sized to the rooms long ago when steam knowledge was more prevalent in your area. if that is so, then getting the air out easily from the system will result in all radiators getting a few ounces of steam simultaneously. the thermostat is probably also letting the system run longer than necessary as it is far away from a radiator.
the radiator vents will not be able to do the main job of air removal, as they are just too small.--NBC

Deadly knuckleheads

@ August 24, 2014 11:00 PM in the latest on Boone, NC CO poisoning

Most knuckleheads just cost people unnecessary expense. These cost people their lives!--NBC

Size matters

@ August 24, 2014 10:57 PM in steam header

Are the risers big enough, even with the bad piping. The manual of installation should show the minimum riser dimensions.--NBC

Unbalanced system

@ August 24, 2014 10:54 PM in Adding longer baseboard steam radiators

Those baseboards are probably the right length, (unless you know otherwise from a heat-loss survey).
I am assuming this system is unbalanced due to bad main (not rad) venting. All radiation should receive steam at the same time, and these three baseboards are probably the last on the line for steam. As a result, they have only just begun to heat up when the thermostat shuts off the boiler.--NBC

home made thermostat

@ August 24, 2014 12:42 PM in home made thermostat

http://www.instructables.com/id/littleBits-DIY-Smart-Thermostat/

Inside rust

@ August 21, 2014 7:28 AM in Please Recommend a good gas to radiator boiler system

It does seem that you have had a nice long life in that boiler. Is the rust from condensation of the flue gases, or a leak?--NBC

legends of the south pole

@ August 21, 2014 6:51 AM in legends of the south pole

This article seems to allow the possibility of a different freezing point for water, which is hard to believe. Surely it must be a misinterpretation of some other phenomenon.--NBC

http://www.wired.com/2014/08/wuwt-weather/

Atmospheric or forced draft burner?

@ August 20, 2014 9:49 AM in Oil boiler with gas conversion burner

In spite of the most careful measurements of the radiation EDR there can be some over sizing or under sizing of the boiler. The atmospheric boiler will not be so easily matched to the load, without a 2--stage gas valve, which is an additional but worthwhile expense. Alternatively, a tag-team of atmospherics can be installed. A pair of smaller boilers may be easier to install, if there is space. Proper controls will only fire both of them at lower pressures (2 ounces), then drop the lag boiler out to maintain the lower pressure.
The gas burner can be tuned through a fairly wide range of BTU outputs to find the sweet spot, which translates to higher efficiency. This efficiency can be demonstrated to the customer, with the mandatory combustion analysis performed at the end of the installation.--NBC
The atmospheric boiler is very quiet, whereas the triple pas boiler, and gas gun can be noisier.--NBC

Choices of heating system

@ August 20, 2014 9:36 AM in New House Heating

It's all about comfort. Think of the most comfortable way to dry your hair: sitting in front of the hot air stream of a hair dryer, or sitting in the sun combing your hair dry.
Warmth from hot surfaces felt on the skin is much more comfortable than the noisy blast of hot air from the register, drying your skin.
Either steam or hot water heating with radiators would be my choice. Hot water systems would give the option of under floor radiant heating, coupled with outdoor reset for greater comfort and economy. Mini-split air conditioners could supply relief from hot summer weather.
As far as comparative cost of operation goes, much depends on the envelope of the house-is it well insulated, and sealed? The comfort of an Hydronic system permits a lower temperature setting; however do not be lured into large night time setbacks to save money, as they will not for periods of less than 24 hours.--NBC

Best boiler

@ August 20, 2014 7:37 AM in Please Recommend a good gas to radiator boiler system

The winner is one installed by the most competent installer, who will choose a make with a stocking distributor in your area, for future ease in obtaining spare parts.
That installer will have done a heat-loss survey., and an analysis of domestic hot water usage to size the new boiler. You can do such a survey by using the software on the SlantFin website.
Further he will follow the manufacturer's instructions for the Installation of the boiler, and also be aware of this website.
What has happened to the old boiler? If you are converting to gas, the old oil boiler may only need a gas burner installed, along with appropriate chimney upgrades.--NBC

Boiler Kaput

@ August 19, 2014 1:32 PM in EDR and margin of error

The definitive boiler leal test is the overfilling of the boiler (which you have done), and then letting it sit for a day or two. Any leakage will be seen on the floor, or in the firebox.
Based on the pictures, I would say that you are correct in assuming a terminal leak.
As regards the figuring df EDR, take the end result of "square feet of EDR" of the radiators, and compare it to the same value as given in the boiler makers specs for the range of boilers they sell. Usually no conversion is needed to BTU.
Probably the leak in the return has cause a constant flow of fresh oxygenated water into the boiler, shortening its life, so don't forget to fix that as well.--NBC

Staying open

@ August 18, 2014 11:24 PM in Honeywell mercury steam valves

Is your system 2-pipe, or 1-pipe?
I suspect a 2-pipe system, with some Honeywell traps which will not close when the steam arrives.
Any trap from that period has been designed for low pressure, such as below 1 psi, so is your system operating in that range?
Check the pressure, and make sure it is below 16 ounces. A good gauge will be needed , from gaugestore.com.
Replacement capsules are available for traps from tunstall inc.--NBC
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