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Re: Oil Boiler - Constant Reset
It's much more likely that the control is doing its job and locking out the burner for safety. No ignition, poor combustion, unstable flame are some of the reasons why that control would need to be reset. I've never had a burner control lock out when everything was working the way it should.
Re: Boiler with no draft regulator
I assume you are speaking of Oil Burner Tune-Ups. If you can not locate the IO Manual in the rafters, you may be able to locate them on the internet. Do you carry a tablet with internet access with you on service and maintenance calls? You should. You should always have access to the manual of any piece of equipment you work on.
Re: Efficiency of an indirect water heater
Back to the topic
Standby loss, my HeatFlo, it was at 116F at 7:00 pm. At 7:00 am this morning it is at 106F
Sitting in a 67F shop. So the “less than a degree per hour” holds in this application
It is only only connected to a drainback, water drains out, so no potential to thermo siphon heat away
hot_rod
Re: Efficiency of an indirect water heater
We just had to delete several sexist remarks on this discussion. It's stunning to see how a discussion about water heater efficiency can lead to sexist stereotypes and a "joke" about violence against women. These attitudes are toxic and not welcome here. You're better than this. Follow site rules and be respectful of others.
Re: Boiler
Since the DHW coil in the boiler will probably still have water in it I don't see a problem. I'm thinking the leaking valve is a temperature and pressure valve like on a hot water tank, not sure if it is even needed, the boiler's manual diagram does not even show it. Maybe it is the wrong valve for the application and that is why it failed.
109A_5
Re: Home Boiler System - Need help sizing boiler circ pump
Yes, DHW is Zone 1 which is on priority. When DHW calls for heat, all other zones get disabled and the boiler runs at a higher setting for DHW. This is controlled by Azel ilink zone controllers. The lines feeding the indirect water tank are the two larger 1.25" lines on the right heading towards the floor - and over to the left where the tank is. I don't have a picture of the right hand side where the zone valve feeding the upstairs is.
I've never heard or seen any relief valve action. Boiler has been serviced often and exchanger cleaned regularly. This is the older version which didn't have a dedicated DHW outlet. It does have DHW contacts (driven by the blue zone controller) which call for the high fire for dhw.
Re: Need help balancing a single pipe steam system in Queens, NY
There really shouldn't be that much difference between an open 1/8" hole and a C vent. I would bet there is some other issue at play such as water being trapped by a low spot in some pipe that feeds the radiator.
Re: Home Boiler System - Need help sizing boiler circ pump
If that Alpha was doing the job, the 0026E should be more than capable. Is it possible that the auto adapt function has slowed the flow to a point that it's causing trouble? This has been an issue with the Alpha but I have no personal experience with the 0026E performance. Perhaps there is an airlock in some of the loops after the circ swap which is causing the strange performance?
GroundUp
Re: Home Boiler System - Need help sizing boiler circ pump
thermal equilibrium is when the heat emitter is taking the full output of the boiler
Supply and return temperature will be stable at that point, not moving up or down
The actual output of that boiler mihht be around 93,000 btu/ hr. So all you need to circulate is 9, 10 or so gpm. Did the previous circulator do okay? If so no need to upsize
If the new larger circ is moving the flow faster the temperature difference will be smaller between supply and return
What we don’t know is what is controlling the boiler operating temperature? ODR outdoor reset or a fixed setpoint!
hot_rod