On Jun 9, 7:59*pm, Big_Jake wrote:
On Jun 9, 6:49*pm, ransley wrote:





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.

Ok, I'll bite - How does adding t-stats to each radiator or baseboard
separate the billing for the heat between the two units?

For the OP, here are some options -

1) Add a 2nd boiler, gas or oil, and separate the plumbing from the
baseboard or radiators, probably easiest with PEX.

2) Disconnect the baseboards or radiators in the tenant's unit and
replace them with electric baseboards. *This will probably cost more
to operate.

3) Disconnect the baseboards or radiators and have a separate gas
forced air furnace installed in the attic.

Given the choices, I would prefer #1.

JK- Hide quoted text -

- Show quoted text -

It wont separate billing it controls overheating. Its a tenant and he
has to supply a certain amount of heat, Thousands for the convienence
of a separate bill doesnt pay off, insulation does. Tenant pays heat,
rents are less.