My family went gaincity last week and the sales person also pushy for this setup, so my family got it.
Awaiting for installation...
I initially want 9000btu for all 3 room now i got 12000, i was also wondering if it will consume more electricity
Below are what I have learned from far, and happy to be corrected by the more experienced folks here.
Noticed that for Gaincity, they tend to quote the higher BTU FCUs because the price differential between the different FCU sizes are quite marginal. From my own research so far (based on ME and Toshiba), it ranges between $40 - $50 per size upgrade per unit. ie. 12k BTU is approx $50 more than a 9k BTU. Whether this is right approach to just whack the largest FCU, I am not sure as there are different perspective.
I think reference back to the manufacturer's specs can determine what is the actual BTU output when units are simultaneously turned on, and if that is sufficient based on your expected typical usage. Using the SCM80YT-S compressor as example here, below is what is given in the brochure.
Rated cooling capacity if all 3 units are turned on:
3 x 9k units: 2.5kW = ~8,500 BTU
2 x 9k units + 1 x 12k unit: 9k unit = 9k @ 2.35kW (~8k BTU), 12k @ 3.29kW (~11.2k BTU)
3 x 12k units: 2.67kW = ~9,100 BTU
For electrical consumption difference, you can calculate based on the manufacturer's specs again. Following from the example above, rated input energy as below:
- 3 x 9k = 1,580 W
- 2 x 9k + 1 x 12k = 1,650 W
- 3 x 12k = 1,650 W
Based on above, clearly there is more electricity usage. If assume all 3 units are turned on 24hrs a day, an estimate of extra cost, assuming $0.30/kWh, on a yearly basis = (1650 - 1580)/1000 x 24 x 365 x 0.3 = ~$184