On Jun 9, 6:20*pm, (lakeshow)
wrote:
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Hi there,

I own a duplex that has hydronic heating with an oil-fired boiler. The
problem is that there is a single oil tank for the whole duplex, and as
the owner (living in the lower duplex) I have no control over how much
tenants (living in the upper duplex) consume in terms of heating. The
boiler is relatively new and I would hate to have to replace it, but I am
looking for a way to separate the heating either switching to gas or
electric, so that each living unit is independent.
Does anyone know if this can be done without replacing the boiler?

Any ideas would be appreciated.

Thanks.

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A few Danfoss TRVs might do it.