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<blockquote data-quote="Stanley" data-source="post: 16188309" data-attributes="member: 35939"><p>I got estimates for a couple of options on a replacement ac system for the downstairs in my house. One is a two stage system with a zone system and one is a variable speed system. The two stage is a Lennox XC16 and the variable system is the Lennox XC20. While I feel like the variable system would be a more efficient option, I'm not sure it would justify the extra cost.</p><p></p><p>Is it worth the extra $3k for the variable speed system compared to the two stage system? </p><p></p><p>From the AC guy.</p><p>"Option B is a 5 ton two stage system with a variable speed furnace which we could put a zone system into and be able to control the common area separately from the master. The only catch with this option is that we would have to put a few registers from the common area on the master zone because there is too much airflow on a 5 ton system even in first stage for you master bedroom and bathroom space."</p><p></p><p>"Option C is a 5 ton XC20 variable speed complete system which would allow us to more precisely adjust airflow in your bedroom area."</p></blockquote><p></p>
[QUOTE="Stanley, post: 16188309, member: 35939"] I got estimates for a couple of options on a replacement ac system for the downstairs in my house. One is a two stage system with a zone system and one is a variable speed system. The two stage is a Lennox XC16 and the variable system is the Lennox XC20. While I feel like the variable system would be a more efficient option, I'm not sure it would justify the extra cost. Is it worth the extra $3k for the variable speed system compared to the two stage system? From the AC guy. "Option B is a 5 ton two stage system with a variable speed furnace which we could put a zone system into and be able to control the common area separately from the master. The only catch with this option is that we would have to put a few registers from the common area on the master zone because there is too much airflow on a 5 ton system even in first stage for you master bedroom and bathroom space." "Option C is a 5 ton XC20 variable speed complete system which would allow us to more precisely adjust airflow in your bedroom area." [/QUOTE]
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