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I'm involved in restoring a couple of Smith's Heater Fans. I've got two
of them to work with. Both have identical housings/scrolls, both have
similar motors and fan impellers but are somewhat different. I'd like to
understand more about the differences. From the outside - they both look
like AH Mark I (Bugeye) heater fans (Item 1 here:)
http://www.spridgetguru.com/AKD3567/BP.html
But on the one removed from a Bugeye, the fan (item 3) is 2" wide and the
motor (item 2) is fully enclosed. The second fan is also a Smiths
assembly, with a 3" wide fan, and the motor housing is vented - presumably
because the flow is about 50% higher (3" vs. 2" impeller width), so the
current draw would be higher.
The latter statement is guesswork. I've been trying to find a list of
Smith's blowers that includes these model differences, to verify my
speculation. At first glance the motor shafts, windings, etc. appear to be
identical.
Does anybody know of a source for Smith's blowers specification sheets?
Model i.d.'s, rated flow rates, etc.
Any help appreciated.
Walt
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w swift
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<div dir=3D"ltr"><span style=3D"font-size:14px">I'm involved in restori=
ng a couple of Smith's Heater Fans.=C2=A0 I've got two =C2=A0of the=
m to work with.=C2=A0 Both have identical housings/scrolls, both have simil=
ar motors and fan impellers but are somewhat different.=C2=A0 I'd like =
to understand more about the differences. From the outside - they both look=
like AH Mark I (Bugeye) =C2=A0heater fans (Item 1 here:)=C2=A0</span><div =
style=3D"font-size:14px"><br><div><a href=3D"http://www.spridgetguru.com/AK=
D3567/BP.html" target=3D"_blank">http://www.spridgetguru.com/AKD3567/BP.htm=
l</a><div><br></div><div>But on the one removed from a Bugeye, the fan (ite=
m 3) is 2" wide and the motor (item 2) is fully enclosed.=C2=A0 The se=
cond fan is also a Smiths assembly, with a 3" wide fan, and the motor =
housing is vented - presumably because the flow is about 50% higher (3"=
; vs. 2" impeller width), so the current draw would be higher.</div><d=
iv><br></div><div>The latter statement is guesswork.=C2=A0 I've been tr=
ying to find a list of Smith's blowers that includes these model differ=
ences, to verify my speculation.=C2=A0 At first glance the motor shafts, wi=
ndings, etc. appear to be identical.</div><div><br></div><div>Does anybody =
know of a source for Smith's blowers specification sheets?=C2=A0 Model =
i.d.'s, rated flow rates, etc.</div><div><br></div><div>Any help apprec=
iated.</div><div><br></div><div>Walt<br clear=3D"all"><div><br></div></div>=
</div></div><div><br></div>-- <br><div class=3D"gmail_signature"><div dir=
=3D"ltr">w swift</div></div>
</div>
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