How/where to connect calorifier

[Graham_Wright]

Naively, the heating coil is connected in parallel with the heat exchanger. As the bores are vastly different, the calorifier receives very little flow.

I suppose before the thermostat would make sense but that is difficult to plumb.

Engine is 1.5 BMC.

Any suggestions please?

 

[rogerthebodger]

I connected my calorifier into where a car heater was connected.

 

[DownWest]

Naively, the heating coil is connected in parallel with the heat exchanger. As the bores are vastly different, the calorifier receives very little flow.

I suppose before the thermostat would make sense but that is difficult to plumb.

Engine is 1.5 BMC.

Any suggestions please?

Before the thermostat will get best effect. Going back to the era when 1.5s were in cars and vans, there was a connection on the top of the head that piped off the water to the heater. So it was active before the thermostat opened and actively delayed it by taking off warm water to the heater. On my minivan, the on/off was a brass tap on the c/head..

 

[bristoljim]

Should be a tapping at the flywheel end of the head (3/8 BSP I think) for one heater connection ,brass hexagon plug if its never been used with a heater. I seem to remember the bottom hose to the water pump in the vehicle having a small moulded connection for the other heater connection.I have put a tapping in to the top of the thermostat housing on a marine conversion which worked ok & is easy to do.
Jim

 

[Graham_Wright]

Thanks for the suggestions. I will check for the tapping; that seems the easiest solution. I already have an input to the return flow (for the header tanks).

 

[vyv_cox]

Not quite the same engine, this is my BMC 2.2 50HP. Take-off for the calorifier and wheelhouse heater is a hose tail at the base of the thermostat. I use an electric pump to circulate hot water as the calorifier is a metre above the engine. It might work with the engine's circulation pump but I have never tried.

 

[rogerthebodger]

Just above the bracket that holds the twin engine filter and below the thermostat housing is one of the connections to my calorifier

Just behind the copper tube to rubber hose is the connector on the engine for the calorifier.

The calorifier hoses pass behind the copper tube down to the stainless elbows at the lower sump then under the engine to the calorifier.

My engine is a Leyland 3.8 lit 4 cylinder.

Calorifier fitted on the left of the pic with the water pipes from the engine next to the stainless exhaust injection elbow.

No separate pump needed.

 

[Graham_Wright]

In with the bits that came with my spare engine, is a take-off block which would fit between the pump and the thermostat housing. Unfortunately, that would lift up the assembly too high for the lead to the heat exchanger. Take off from the block seems the way to go. Need to have a look on the next visit.

(The spare engine is currently having a rebore and sleeve etc.)