Sorry if this has already been discussed, but I've looked and can't find an answer.
We're on Long Island and have a Thermo-Dynamics S-series boiler that provides baseboard heating plus domestic hot through a hot water insert. There is no hot water storage tank. We moved in 25 years ago and converted line voltage thermostats to low voltage with Honeywell RA89A transformers for each heating zone. In an effort to clean up the installation, eliminate using romex for low voltage and provide a C wire for smart thermostats, we've run low voltage thermostat wires and purchased a Taco SR503-EXP-4 switching relay to replace the Honeywell transformers.
The hot water insert in the boiler is based on street pressure (no circulator pump) and whenever the baseboard heating kicks in our showers turn cold. The same can be said for laundry, sinks and the dishwasher. The Taco relay has the ability for a priority zone. Is there a way to utilize this feature to inhibit the heating circuits when domestic hot is in use?
I know we don't have the most efficient setup, but we're looking to solve the cold shower problem and not replace the boiler at this time. The boiler room also doesn't have the space to add a separate hot water storage tank.
Thank you,
Scott
We're on Long Island and have a Thermo-Dynamics S-series boiler that provides baseboard heating plus domestic hot through a hot water insert. There is no hot water storage tank. We moved in 25 years ago and converted line voltage thermostats to low voltage with Honeywell RA89A transformers for each heating zone. In an effort to clean up the installation, eliminate using romex for low voltage and provide a C wire for smart thermostats, we've run low voltage thermostat wires and purchased a Taco SR503-EXP-4 switching relay to replace the Honeywell transformers.
The hot water insert in the boiler is based on street pressure (no circulator pump) and whenever the baseboard heating kicks in our showers turn cold. The same can be said for laundry, sinks and the dishwasher. The Taco relay has the ability for a priority zone. Is there a way to utilize this feature to inhibit the heating circuits when domestic hot is in use?
I know we don't have the most efficient setup, but we're looking to solve the cold shower problem and not replace the boiler at this time. The boiler room also doesn't have the space to add a separate hot water storage tank.
Thank you,
Scott