An ideal Mexico floor standing (replacement) boiler was put in in Sept08. It was fine for about 3 months and then the header tank kept emptying out. It is an open vented tank which I fill manually.
The system will lose about 2-3 gallons of water per day. It was suggested the heating coil in the H/W tank was perforated and water was being lost that way. I replaced the tank and there are no leaks anywhere.
The condensate pipe drips when the boiler is firing, but does not when it is not firing. A couple of gallons of water disappear on a daily basis and there is no sign of a leak anywhere in the house. (The boiler is in the house and a leak would be obvious) I'm baffled - the water in the header tank does not get hot so it is not evaporating.
One thing I note which is a little odd - the boiler fires when it is heating up and often turns off for quite a while. The pump is running and the water passing through the boiler can become cold for a couple of minutes before it begins to fire again. I would have thought it would fire all the time the boiler temperature thermostat indicated the water was below the set temperature.
Is there any way the heat exchanger could crack without water being seen around the boiler?
The system will lose about 2-3 gallons of water per day. It was suggested the heating coil in the H/W tank was perforated and water was being lost that way. I replaced the tank and there are no leaks anywhere.
The condensate pipe drips when the boiler is firing, but does not when it is not firing. A couple of gallons of water disappear on a daily basis and there is no sign of a leak anywhere in the house. (The boiler is in the house and a leak would be obvious) I'm baffled - the water in the header tank does not get hot so it is not evaporating.
One thing I note which is a little odd - the boiler fires when it is heating up and often turns off for quite a while. The pump is running and the water passing through the boiler can become cold for a couple of minutes before it begins to fire again. I would have thought it would fire all the time the boiler temperature thermostat indicated the water was below the set temperature.
Is there any way the heat exchanger could crack without water being seen around the boiler?