please advise

[addamsmasher]

I have a friend who's moving to Waco.

His house is 90 year old 2 story home 3 br, 2 baths.

The house has no central air.

I've been talking to him about diffrerent options.

He got an estimate for 7 tons (2 3.5 ton units) which seems way high, I don't know if they did a heat load or not.

I've been trying to steer him perhaps toward ductless splits but the misses doesn't like the mr slim.

I could use a little guidance myself.

[big sky hvac]

I have a friend who's moving to Waco.

His house is 90 year old 2 story home 3 br, 2 baths.

The house has no central air.

I've been talking to him about diffrerent options.

He got an estimate for 7 tons (2 3.5 ton units) which seems way high, I don't know if they did a heat load or not.

I've been trying to steer him perhaps toward ductless splits but the misses doesn't like the mr slim.

I could use a little guidance myself.

It really doesn't matter what we think. If a load calc. was performed, then they'd know what size was needed. 7 Tons seems rather on the large size, considering it's 3br, 2 ba, unless...... the bedrooms are like 1500sq. ft. each and bathrooms are 750sq. ft. with a 2500 sq. ft. kitchen and a 3000sq. ft. living room. All kidding aside, without seeing the home, knowing all the variables that go into doing a load calc., it is impossible to know what size is actually needed. As far as the mini-splits go, if his wife doesn't like them, then there are always window-shakers or suffer through the heat. Just out of curiousity, why would your friend buy a 90 year old home without A/C in Texas anyway??

[beenthere]

I'd say 7 tons sounds large. But you didn't give any real house size info, or construction.

Waco has average highs in the 100's. So that knocks off some capacity.

[addamsmasher]

sorry, heres the house....

http://www.jsrwaco.com/PropertyDetail.aspx?mls=133827

[beenthere]

I think even in Waco, 7 tons is a bit over sized.

[sktn77a]

Given the humidity down there, (grossly) oversizing the A/C is probably not a good idea. He needs to see the Manual J calculations to make sure the installers know what they are doing. Can he get an energy audit by the local power company?

[REP]

In all those pictures all I seen was one heating register and its on the wrong side of the room.The ad says gas and electric heat.
I don't see 7 tons ,thats just an out of someone's butt size.
The problem is that I'm GUESSING that the exhisting ductwork is way too undersized even for the furnace that is there.
Adding a/c is I'm afraid going to involve a huge investment,maybe all new ductwork.If that were done a properly sized heat pump would be worth looking into.
Mini split heat pumps might be worth looking into.I know what you said but it might be the differane between that or ripping walls open to install properly installed duct work.
There is also one more option and that would be a high velocity a/c where they just have to fish a 2" round flex pipe into each room and a return grille centerly located in ceiling.There isw a unit on the market that uses an art like picture for the wall unit instead of the normal looking wall unit mini splits have.I don't know the brand but perhaps someone could help with that web site info.
The thing is nobody is going to give anything to your friend,they will charge for it.
I say that if they want your friend's money then asking for a manuel J,a manel S and a manuel D is what they will have to do to get the job.If they won't do that for you then they don't want your money.Its as simple as that.

[cboe]

correct me if Iam wrong, my undrestanding is that you can not buy a house in Tezas with out A/C.I understand thats the code in texas. anyone have any thoughts on that?
if the insullation hasn't been up gradded on the house, 7 ton might be needed. as mention heating cool load calks are a must. than you are covered.