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FAQ

I have been given the responsibility of designing a mobile ethanol plant but don't have a clue how to design the ethanol system? Most of the process is fairly simple, just transfer fluid from one tank to another but the boiler system is throwing me for a loop. I have to run a batch cooking system and a distiller from the boiler. Any ideas where to start on this would be helpful- Spring, TX

In maximum international locations you may desire to be authorized to try this, as there are various suggestions on a thank you to have a catastrophe, ie, an exploding boiler with death. and you're patently no longer qualified. So hire a expert to try this. .

In a Babcock Wilcox boiler the air for combustion is preheated before being mixed with the fuel and I have been told that this decreases the amount of energy that is needed to heat the air to the correct temperature for combustion. This seems to contradict the whole concept of a cold air intake in a car in which cold air carries more molecules for a given volume thus providing better, more complete combustion.

Apples and oranges. Boilers work by burning fuel to produce heat energy. Therefore, preheating the intake air by passing it through a heat-exchanger with the exhaust air results in energy savings. Engines work by compressing the fuel-air mixture, then combusting it to produce mechanical energy. Coolng the intake air makes it denser, and the engine can pack a larger quantity of fuel and air into the cylinder for each power stroke, making it more efficient.

Before the combi the shower was very sensitive but quick to adjust, so within a few minutes I could get it to a comfortable temperature. Now with the combi, it is either scalding hot or freezing cold. My suspicion is that it is still just as sensitive but that it is taking ages to change i.e. it is too hot so I turn the knob to cool it down, nothing happens for ages so I turn it down again, then again, and finally it catches up and is freezing! Does this sound likely? We have been told that it is because the water pressure for our area isn't very good and so it is something that we will have to put up with. Thanks in advance!

A possible reason is your new combi-boiler. A combi-boiler provides hot water instantly which is fed from the cold water mains. So essentially, when you turn a hot tap on, it has the same effect on water pressure as turning a cold tap on. So the reduction in water pressure means the shower water can become hotter. Turning is down will take a while for the rest of the water that is hotter to come out of the shower system - and keep turning it down will make it cold when the hotter water is out of the system. This is the same when you keep turning it up. This is a slight problem in my house. I have an electric shower that runs from cold water mains, and as soon as someone turns any tap on (hot or cold), the water pressure is slightly reduced and the shower water starts getting hotter. I hope this sort of helps?

My husband and I just moved into a hot that has a natural gas fired boiler and hot water heater heating system. I know absolutely nothing about this kind of heat. Do I need to get this kind of heating system routinely cleaned each year before winter, like other heating systems?If so, who do I call for that? I have been told a plumber, but every plumber that I have called has said they don't do cleaning of boilers!?Also, does anyone know how much it costs to get this type of maintenence done?

As a rule, natural gas boilers require much less cleaning than oil-fired units. That being written, you have a 'summer-winter' system, so your boiler operates all year round to make hot water. This, in fact, is helpful as you have a good gauge that the system is operating correctly when you turn on the heat. But, to answer your question directly - if you have a standard 'open' boiler that uses room-air for combustion, it is useful to clean out the burners once a year and use a soft wire-brush on the thermocouple and pilot-assembly to remove any scale. It is a very simple task that takes perhaps 20 minute from start to finish and is something a *skilled and experienced* homeowner could do. If the boiler is a cast-iron sectional boiler, it is also useful to clean out the areas between the sections with a soft brush every couple of years or so. This involves removing the sheet-metal from around the boiler and should only be done by a technician. If you have a sealed condensing boiler, no such service is required. They use specially-designed, corrosion-proof fire boxes to prevent scale and rust build-up. Speak to your gas utility. They usually have a list of approved service technicians in your area that will do what is needed. Often they offer a service-contract that includes such cleaning as well. PECO charges anything from about $180 to $300 for such annual contracts via private service companies depending on the depth and extent of coverage. But they all include at least annual servicing.

Viagra boilers and Viessmann boilers in the end which one is good

We do not for the two energy efficiency of the boiler compared to each other technical quality, and what is better.

i want to know what my boiler temperature in my my apartment is its only a 3 story apartment/house and the door locked hat should the temperature of a normal boiler should be for water

A hydronic boiler for heat will run roughly as follows: Standing cast-iron radiation: up to 130F Baseboard (Fin-tube) radiation: up to 180F For domestic hot water only - and depending on the application, 120F - 150F in a residential setting. The higher temperature if tempering valves are installed, as 150F water will scald nearly instantly. You should not get more than 115F +/- at the tap as even that will scald sensitive skin. 110F is generally considered a 'safe' operating temperature (at the tap).

I am in the process of installing a hot water gas boiler Weil Mclan CGI 4 . I have seen many boilers placed on a cemented platform. I wonder whether a platform is necessary or can I place the boiler on the floor itself. Any advice will be highly appreciated.

i think that is done to keep the boiler base dry.since most floors are wet or damp.just my guess.

My hot water boiler is running around 22 psi, 110 F. Basement pipes are hot. Overheat expansion tank is cool. 10 radiators on the system, two of which are on the second floor. Came home this evening and saw blackish water on the floor near fifth radiator in the system on first floor. Noticed second floor was air locked. Tried to burp, but didn't get anywhere. Finally had the sense to start at radiator no. 1. After two and a half hours, no heat past radiator 5, and even that one I never got to bleed. Have been repeating back and forth between 2, 3, and 4, sequentially. No. 1 always has water. What gives? I can hear the water in the pipes. Should I continue on with this process? I can tell you I did not do a good pre-season bleed as I was ill, and then it slipped my mind until the current situation. Btw, as I've been bleeding, thermostat has been progressing upwards. Appreciate any thoughts. Thanks!

What do you mean by didn't get anywhere? Did the bleeder open or not? What came out? You should not speculate about any components until the air is bled out. With that small a quantity of radiators, it doesn't matter which order you bleed them, but you must have working bleeds on all of them. In commercial buildings they always bleed the top floors first to get the risers filled, and then work their way down. When they get to the bottom they reverse their direction and work their way back to the top. This is the fastest and most effective method. You have the typical symptoms of a defective pressure gauge and a low system pressure. If your pressure is 22 psi you would have large amounts of air or water blowing out of the second floor bleeds. In a two story building this is the case even if the circulator pump is off, because 22 psi x 2.31psi/ft. = 50.82' of static head. You would still want the pump running when you bleed the system to keep the circulation of the water entrained air. Once you are sure all the air is bled out, then you can look for other problems if need be.