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What is the proper way to refill my Hot Water Boiler (Hot water baseboard system) after it has been drained?

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Your boiler should have a automatic water feeder so it should fill it self , how ever your heating system needs to be purged that means you must let all the air out of the system you usualy do this with a bleed valve on the return line

Posted on Jul 23, 2008

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My boiler heating is working but hot water is not coming. i want to know how to set hot water 24 hours 7 days


As I understand your question, you have a boiler with a 'summer/winter' hookup for domestic hot water.

Your boiler should run all the time, i.e. not be shut off by you. Your boiler provides hot water for baseboard heat in your home ... possibly through several 'zones' each controlled by an individual thermostat and circulator. Yours may be a steam system. If this is the case, you have radiators not radiant baseboard heaters and no circulators.

Your summer/winter hookup provides a constant supply of domestic hot water. It does this by taking cold water from your water main and passing it through a copper coil which sits inside your boiler and then to your hot water main in your home. Since the coil sits in the hot water at the top of the boiler, it is constantly being heated. This coil may be in a deteriorated condition in your case or it may be too small for your needs.

Several years ago, I did a small upgrade to my mid 1950's era American Standard boiler. The summer winter hookup in my case was mounted on a 4 inch cast iron boiler plug. The coil was 12 feet long (folded up to a package about 1 foot long). I was very afraid when the plumber came in with what amounted to a 10 foot long pipe wrench. My fear was I would have a pile of broken cast iron at the end of the day. All is well that ends well. He got the old one out and replaced it with a coil that consisted of 20 feet of copper tubing 3/4 inch in size (the folded tubing was about 20 inches long and fit nicely into the boiler). We now have all the hot water a household consisting of one guy and three gals would need in all but the extremest of times..

I think you r answer is here ... replace your summer/winter coil with a new, bigger coil.

Something else I did. My kitchen is 60 feet (pipe wise) from the boiler. It takes a long time to get hot water there. I put in a small electric hot water heater just under the kitchen. I put a timer on it so it runs for a couple hours in the morning and a few hours in the afternoon. The hot water line from the boiler serves as the cold water input to the heater. I now enjoy the convenience of quick hot water in the kitchen with the relatively low cost of oil heated water from the boiler as a relatively small cost of electricity.

My winter settings are 160 - 200 and my summer settings are 120 - 150 which seems adequate for our needs.

Thanks for your question at FixYa.com. I hope I have been of assistance to you today.

Feb 05, 2011 | Air Conditioners

1 Answer

I have a vulcan continental boiler , heating system , and its not fireing up , i think there is air in the system , whats the best way in to bleeding it out ?


Air in what system?--
The Circulating 'Hot' water?-- or in the fuel? (What kind of fuel?)

Normally a hot water boiler will fire, as long as ther is water in the boiler,
So-- are you suspecting there is Low water in the boiler?
Can yo hear the water circulating thru the water pump?-- is the water pump running?

Tell us more about what happens when you first give it a call for heat?
Do any fans or valve try to start?-- any indicator lights?

Tell us some of the obvious things, and maybe there is a clue in something you tell us or observe.

Mack B

Jan 14, 2011 | Air Conditioners

2 Answers

My f28 boiler is letting water out all the from the run off valve


Hello

This is a relief vave,probably rated for 30 psi.You either have air in your heating system causing the pressure to go up.

Or you need a new relief valve,sometimes the springs wareout or rust and iron from the water keep them from reseating properly.

You should have 15 to 20 psi of pressure on the boiler if its 30 or over you need to bleed air from the highest radiator or baseboard,if there is a 2nd floor go up to one and find the bleeder and bleed out air.Be carefull once the water starts coming it will be hot.

Nov 08, 2010 | Air Conditioners

1 Answer

I HAVE A WATER ONLY BOILER MODEL WR11E IT IS ONLY 6 MONTHS OLD AND THE PROBLEM IS THE WATER IS ONLY LUKE WARM AND NOT HOT AS IT WAS BEFORE


Turn the boiler off. Connect a garden hose to the drain bib. Shut the water supply valve off.
Open the drain bib and drain boiler. Close drain bib and open supply valve.
When boiler is full, go to the farthest faucet and open the hot water and let run.
Go back to supply valve and turn off and on a couple of times rapidly this will "bounce" sediment loose.
Repeat above twice.

Nov 08, 2010 | Air Conditioners

1 Answer

I'm a new plumber. I was asked to restart a burnham gas fired steam boiler in a fire damaged apartment. The boiler was drained last winter along with the radiators but was not winerized. I am their plumber...


1. You need to fill the entire system with water before you fire it, boiler AND radiators... Then, you would normally vent as much of the trapped air in the system as you could... It's not like you are only going to fill just the boiler and then pump that water through the pipes.

There is a temp setting on the boiler, but I don't think that's a solution. Remember that the water in the system is going to begin circulating as soon as you start the boiler. So, it will start circulating when it's cold, and then gradually warm up.

Your problem is not the sudden rush of hot water, it's going to be filling the system in the first place, and getting the boiler started before the system freezes up ...

I don't really have any suggestions for you though, other than perhaps renting one of those construction heaters ... and bring the building temp up a bit. But there's certain dangers associated with them too... Carbon Monoxide for one, fire is another (if used improperly).

Just thought of something: Fill the system with glycol based anti-freeze solution that's designed for heating systems. That oughta do it...

I'm guessing there's not a functioning water heater either at this point, is there ? If there was, you could possibly rig something up to fill the system with lukewarm water, and fire it before it freezes up.

2. You don't have a lot of choice. You have to fill the system, fire the boiler & wait.
It is going to take a long time to get the system up to temperature. Instant circulation is a double edged sword. The upside is you get a little bit of heat into the water & have it moving making freezing less likely. The downside is, it's hard on the boiler with that much cold water coming back you are likely to have condensation.

Apr 22, 2009 | Air Conditioners

1 Answer

We seem to have developed a problem with our boiler, worcester 20/25 heatsave. Every time we turn on a hot water tap, when we turn the tap off, there apears to be a loud noise from the boiler or pipes for...


it seams the valve that senses water flow is not operating properly,causing the boiler to keep heating the water when it has nowhere to go,i,e the taps turned off,thus boiling the water.

Jan 12, 2009 | Air Conditioners

1 Answer

Bosch greenstar 30 CDi - no central heating or hot water!


it sounds like the system was not cleaned properly when the new boiler was fitted. all new boilers need to have the pipework flushed to remove any debris scale sludge and flux from the system. this is now usually done by a power flush which is basically a big pump mounted on a big bucket and it washes the dirt out of the pipework and collects in the bucket. if this is not done the dirt will block up the small passages in the heat exchanger. i suggest the system is cleaned flush and the heat exchanger changed to help protect the boiler a filter should be fitted (for example a magna clean) if the company who installed the boiler is corgi registered then they are liable for the damages. call corgi for advice.

Jan 04, 2009 | Air Conditioners

1 Answer

Have an oil fired boiler for baseboard heat and it also has a tankless heater for domestic hot water. No heat being called for only getting hot water for use. Boiler goes to 210 degrees before it knocks...


These boilers usually have multiple controls. The control that would take it out of the circuit at 210 degrees is a safety.

You should definitely have a professional take a look at this unit before you continue using it.

Sep 18, 2008 | Air Conditioners

1 Answer

I have a Honneywell Triple Aquasatat Relay insstalled on by boiler that heats both the baseboard and hot water for my residence. The relay is set so that the low kicks on at 180 degrees and the high kicks...


The temperatures you mention are reacting in a normal manor. The drop in temperature after it first starts comes from the water being brought back to the boiler from the system. The rise in temperature comes from the residual heat in the chamber after the burner shuts off. I would not push the limits on these settings. Water from the boiler is mainly meant as an assist . You did not answer if you have another hat water heater.

May 01, 2008 | Air Conditioners

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