On 28/10/2012 19:52, Dave Liquorice wrote:
On Sun, 28 Oct 2012 10:47:00 +0000, Gailey wrote:

... and my local heating oil suppliers don't sell it.

Well perhaps not BS2869 Class C1 but 28 sec heating oil (BS2869 Class C2)
is only marginally heavier. 28 sec heating oil will still work just might
be a bit smelly compared to "paraffin" produced for non-flued heaters.
The sulphur content of heating oil is higher but I doubt that is
particularly significant.

It is very risky, and in my opinion not worth the risk.

Heating oil is around 60p/l, minimum delivery from a heating oil supplier
is probably 500l though. You might be able to buy a smaller quantity if
you collect or find a neighbour with oil fired central heating?

I wouldn't touch heating oil with a barge pole.
I've seen a crop of over 2000 tomato plants wiped out overnight when a
flue blocked and the fume from a heater filled the glasshouse.
Another time a cucumber crop lost the same way, Sulphur burns the
foliage of the plants, some are a little more tolerant than others.
We used to clean out glasshouses by burning piles of sulphur and
Nicotine shreds in closed down houses then leaving them for 24 hours.
(Sacha. I expect Ray remembers doing this)
David @ the wet end of Swansea Bay

On Sun, 28 Oct 2012 21:03:57 +0000, David Hill wrote:

I wouldn't touch heating oil with a barge pole.
I've seen a crop of over 2000 tomato plants wiped out overnight when a
flue blocked and the fume from a heater filled the glasshouse.
Another time a cucumber crop lost the same way, Sulphur burns the
foliage of the plants, some are a little more tolerant than others.

Fairy Nuff... presumably a commercial sized greenhouse and a hefty heater
to produce an out of season crop though rather than "just keeping the
frost out".

We used to clean out glasshouses by burning piles of sulphur and
Nicotine shreds in closed down houses then leaving them for 24 hours.

That's some what more concentrated than the fumes from a few litres of
oil. B-) But yes, as a fumigation (insects?) it was certainly used.

So if heating oil is out we need to find a source of BS2869 Class C1 oil.
I guess one place to start is looking for contact information on the
expensive containers in the garden centres.

The main oil distribution depot for Cumbria is the BP Depot at Dalston,
supplied by rail from the Grangemouth refinery. I think all the local
suppliers probably get their oil from there. try contact the depot direct
to see if they actually have BS2869 Class C1 oil, they probably won't
sell direct but should be able to put you in contact with a "retailer".

I wonder if the "premium" 28sec heating oil that costs a couple of p more
per litre than "regular" 28sec heating oil is actually BS2869 Class C1.
It's supposed to burn cleaner and produce less gunk in your boiler.

--
Cheers
Dave.

On 30/10/2012 14:18, Dave Liquorice wrote:
On Sun, 28 Oct 2012 21:03:57 +0000, David Hill wrote:

I wouldn't touch heating oil with a barge pole.
I've seen a crop of over 2000 tomato plants wiped out overnight when a
flue blocked and the fume from a heater filled the glasshouse.
Another time a cucumber crop lost the same way, Sulphur burns the
foliage of the plants, some are a little more tolerant than others.

Fairy Nuff... presumably a commercial sized greenhouse and a hefty heater
to produce an out of season crop though rather than "just keeping the
frost out".

It was a house of tomatoes planted at the end of March and being given
heat for the first few weeks, and this happened over night.