comma splice or not: recommend this, but until it is installed, it's

[tontiloki]

Hi!
This is my first post. I normally use your forum to clear up any doubts on language because I think it is brilliant
I am a bit obsessed with teaching my students how to improve their writing avoiding comma splices or run-on sentences.
The thing is that they had to do an accommodation review as homework , and the textbook they are using have the following sentence:

"All in all, I would recommend this accommodation, but I would say that until the central heating is installed, it's best in summer."

Well, I just wondered if there is a comma splice here. I think there are too many commas, but I might be mistaken.
Thanks in advance

 

[Einstein]

I'd write:
"All in all I would recommend this accommodation but I would say that, until the central heating is installed, it's best in summer."
Also an optional comma after "accommodation"; I think that after "all in all" a comma is possible but personally I find it excessive.

 

[tontiloki]

Thanks, Einstein. That was a very quick answer indeed, and I totally agree with it!

 

[Myridon]

Whether or not there are too many commas, there is not a "comma splice" here as the two independent clauses are joined with the conjunction "but". A comma splice is two independent clauses joined by only a comma.

 

[tontiloki]

Thanks Myridon for that very clear explanation about what a comma splice is. In any case I am not still very sure about the use of so many commas in sentences which include 2 or more different ideas. They seem to me quite confusing, and I really prefer to rewrite them. Am I mistaken?
What about the changes below?
"All in all I would recommend this accommodation. Although I would say that, until the central heating is installed, it's best in summer."
Thanks again