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Baseboard Heaters dnoyeB 05-22-2006
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Posted by dnoyeB on May 22, 2006, 11:53 pm
I am looking for a good baseboard heater recommendation. Right now I
see only qmark and Cadet mfg. Both seem to cost about the same.

Im looking for 240v since i hear this will be more efficient? Probably
a 4' or 5' unit. I want the kind the the liquid inside.

Any recommendations or warnings?


--
Thank you,



"Then said I, Wisdom [is] better than strength: nevertheless the poor
man's wisdom [is] despised, and his words are not heard." Ecclesiastes 9:16

Posted by Doug on May 23, 2006, 4:10 am
On Mon, 22 May 2006 23:53:15 -0400, dnoyeB

>I am looking for a good baseboard heater recommendation. Right now I
>see only qmark and Cadet mfg. Both seem to cost about the same.
>
>Im looking for 240v since i hear this will be more efficient? Probably
>a 4' or 5' unit. I want the kind the the liquid inside.
>
>Any recommendations or warnings?

The ones with the liquid inside cost about 3 to 4 times more than
simple finned baseboard units.

Also, the liquid filled ones really offer no benefits- they take
slightly longer to heat up and to cool off, sort of a "flywheel
effect".

However, they are no more efficient, despite frequent claims to the
contrary. Also efficiency is the same, barring minimally increased
line voltage losses, regardless of whether or not a unit uses 120 or
240 volts. The 120 v units are generally portable with limited heat
ouput - limited by the amount of current a typical 120 v circuit can
supply.

For example a 2400 watt heater will be as follows:
10 Amps on a 240 volt circuit
20 amps on a 120 volt circuit.
Efficiency is the same.
The units have to be made for a given voltage, they are not
convertible from one voltage to another.

You can buy a 240 volt 4 or 6 foot unit at the Depot for around
$40-$60, plus thermostat. The more expensive units are no better.

Doug




Doug



Posted by dnoyeB on May 23, 2006, 11:48 pm
Doug wrote:
> On Mon, 22 May 2006 23:53:15 -0400, dnoyeB
>
>
>>I am looking for a good baseboard heater recommendation. Right now I
>>see only qmark and Cadet mfg. Both seem to cost about the same.
>>
>>Im looking for 240v since i hear this will be more efficient? Probably
>>a 4' or 5' unit. I want the kind the the liquid inside.
>>
>>Any recommendations or warnings?
>
>
> The ones with the liquid inside cost about 3 to 4 times more than
> simple finned baseboard units.
>
> Also, the liquid filled ones really offer no benefits- they take
> slightly longer to heat up and to cool off, sort of a "flywheel
> effect".

But flywheels are useful no? The liquid stabilizes the temperature so
it does not swing so fast. Thus you should not have as many on/off
cycles. Plus it will keep the area around the heater generally warmer
through constant radiation.

>
> However, they are no more efficient, despite frequent claims to the
> contrary. Also efficiency is the same, barring minimally increased
> line voltage losses, regardless of whether or not a unit uses 120 or
> 240 volts. The 120 v units are generally portable with limited heat
> ouput - limited by the amount of current a typical 120 v circuit can
> supply.

a 240 will use less current which is gentler on my fuse panel.

>
> For example a 2400 watt heater will be as follows:
> 10 Amps on a 240 volt circuit
> 20 amps on a 120 volt circuit.
> Efficiency is the same.
> The units have to be made for a given voltage, they are not
> convertible from one voltage to another.
>

Some can be changed just like some table saws. Yes, the wattage is
telling the power consumption. So long as the amperage is in line, the
efficiency will be the same i agree.


> You can buy a 240 volt 4 or 6 foot unit at the Depot for around
> $40-$60, plus thermostat. The more expensive units are no better.
>

Interesting opinion. Ill have to consider that.


> Doug
>
>
>
>
> Doug
>
>


--
Thank you,



"Then said I, Wisdom [is] better than strength: nevertheless the poor
man's wisdom [is] despised, and his words are not heard." Ecclesiastes 9:16

Posted by Joseph Meehan on May 24, 2006, 9:32 am
dnoyeB wrote:
>>
>> Also, the liquid filled ones really offer no benefits- they take
>> slightly longer to heat up and to cool off, sort of a "flywheel
>> effect".
>
> But flywheels are useful no? The liquid stabilizes the temperature so
> it does not swing so fast. Thus you should not have as many on/off
> cycles. Plus it will keep the area around the heater generally warmer
> through constant radiation.
>

True and for an area where the temperatures will remain stable, it would
tend to even out the temperature a little over the short term, but the
overall swing will be determined by the thermostat, so with oil filed you
might cycle between 69.5 and 70.6 over 20 minutes and with a standard heater
you might cycle between 69.5 and 70.5 over 10 minutes.

The non-oil filled will have the ability to react faster to something
like an open door and will have less tendency to overshoot the set
temperature.

--
Joseph Meehan

Dia duit



Posted by dnoyeB on May 25, 2006, 4:16 pm
Joseph Meehan wrote:

> dnoyeB wrote:
>>>
>>> Also, the liquid filled ones really offer no benefits- they take
>>> slightly longer to heat up and to cool off, sort of a "flywheel
>>> effect".
>>
>> But flywheels are useful no? The liquid stabilizes the temperature so
>> it does not swing so fast. Thus you should not have as many on/off
>> cycles. Plus it will keep the area around the heater generally warmer
>> through constant radiation.
>>
>
> True and for an area where the temperatures will remain stable, it
> would
> tend to even out the temperature a little over the short term, but the
> overall swing will be determined by the thermostat, so with oil filed you
> might cycle between 69.5 and 70.6 over 20 minutes and with a standard
> heater you might cycle between 69.5 and 70.5 over 10 minutes.
>
> The non-oil filled will have the ability to react faster to something
> like an open door and will have less tendency to overshoot the set
> temperature.
>

Good info, thanks.

--
Respectfully,


CL Gilbert

"Verily, verily, I say unto you, He that entereth not by the door() into the
sheepfold{}, but climbeth up some other *way, the same is a thief and a
robber."

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