Keep The Cast Iron Boiler, or Install/Wait for Better Tech?
I’m new here and new to green building. I’m currently trying to find the best balance (probably like most of us) between greening my home and cost effectiveness, at the same time as learning what goes into making a home a home. A lot of the language is new to me, so feel free to ask me to clarify.
I just bought a 120 year old house in central Ontario, Canada. The house is 2500 sq ft, and heated with radiant heating from a 20 year old cast iron boiler. 107000 BTU, 82% AFUE. Haven’t had a winter in this house yet, but seems like at least 2/3rds of the house is insulated, and my guess is renovations happened here in 98. Some walls facing the outside still have the original plaster on them, so interested in seeing how they fare during the winter. Windows are 100 yrs old and new, high efficiency ones will be installed in January.
There’s a duct system installed, but it’s AC only and starts in the attic and goes down to the main floor. I checked if a cold air heat pump would work in my home, but numerous HVAC sales guys highly recommended I didn’t use for a heat pump system for a number of reasons.
My main question is then: do I keep the cast iron boiler and wait for better tech down the road, like hydrogen boilers, an air to water boilers, or some better and different technology to heat/cool my home? Or is it worth my while to switch to a condensing boiler right away? I’m noticing that Europe is way ahead of us, but Canada really lags in terms of cleaner and cheaper to run technology.
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