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shawnlee 08-13-2009 01:09 AM

Heating btu required........question
 
I am getting all kinds of results from online calculators on btu needs of my room.


I am building a 400 square foot room in middle Kansas and I am trying to dertermine the btu`s that I need to heat it.

It will be 2 by 6 walls with r-19 and a r-38 cieling.

Any help would be appreciated,I will be using hydronic baseboard heating.

hvaclover 08-13-2009 12:59 PM

A space heater would work best.

Yoyizit 08-13-2009 03:30 PM

Quote:

Originally Posted by shawnlee (Post 313700)
I am building a 400 square foot room in middle Kansas and I am trying to dertermine the btu`s that I need to heat it.

It will be 2 by 6 walls with r-19 and a r-38 cieling.

I think a 420 W [give or take] space heater will do it, at least in Topeka, with its 5100 HDD.
http://www.degreedays.net/

Plumber101 08-13-2009 06:12 PM

I'm smelling PTAC

Yoyizit 08-13-2009 07:42 PM

Quote:

Originally Posted by Plumber101 (Post 314083)
I'm smelling PTAC

"When it comes to the output heating and cooling capacities, typical values go from 2 kilowatts (7000 BTU/Hr) to 5.5 kilowatts (19000 BTU/Hr) nominal. "

shawnlee 08-13-2009 09:13 PM

Thanks guys....I am south of Topeka and it`s slightly warmer there in the winter.


I think I will go with the hydronic baseboard heat in about a 500/1000 watt hi low range and about a 9000 btu a/c unit ,wall mount...the patc was what i was looking at ,but i dont like the fact if one part goes out I loose everything while i am down for repairs.


It`s about 200 bucks for the baseboard hydronic heater and about 300 for a decent thru the wall 9000 btu a/c,with a thermostat in about a 11 eer.


I would go with patc......but its about 650 for a decent one and they have a heat pump with electric back up and a/c ,but the heat is way more than I need and I am not shure about everthing in one unit deals.......

I appreciate all the help.:thumbup:


On a side note ...lol at some of the online calculators ...they were giving numbers like 10,000 to 26,000 btu for that little room ,a few of them that were more reasonable were giving around 7000 ,which is closer to what I thought it might need.I knew the 20,000 btu figures were way overboard.

I think I will be plenty safe with 5000 btu......I hope.

Plumber101 08-13-2009 09:17 PM

Just a rule of thumb 500 sqft per ton

I'm sure I'm going to get flamed for saying that because a load calculation would be best. Again just a general rule of thumb.

I'd still go for 12k for cooling and 3k for heating.


I'm just a little west of you in Hays.

shawnlee 08-14-2009 12:52 PM

Yep, about 45 minutes north...I am outside of Rozel.

I think those are the numbers I will use.....it gets hot as hadies in the summer and it will not hurt to have plenty of cooling:thumbsup:

I just bought 5.5 acres there and I am moving from california to Rozel....considering the average year round tempature is 70 here...I want plenty of heat and cooling there.......:yes:


Thanks for all the help.


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