These windows are for Indiana (mid-west) climate.
My window company first recommended Alside UltraMaxx and then came back to recommend the Cutting Edge Plus, stating that the Cutting Edge Plus had a slightly higher energy rating/efficiency than the Alside UltraMaxx.
They also stated that the Cutting Edge Plus should be a bit more costly than the Alside UltraMaxx windows, however they would honor the cost originally quoted for either window (10 windows, approx $4,500).
Note: the Alside UltraMaxx windows offered include the ClimaTech High Performance Insulated Glass Package.
The two brochures are quite different---the Alside UltraMaxx states that it's ClimaTech Low-E/Argon Window U-Value is 0.30 versus a Clear Glass Unit rating of 0.46. **In the Cutting Edge Plus brochure there are no references to this or other rating statistics which is a little concerning.
The Cutting Edge Plus brochure mentions the glass to be 7/8" Insulated, Double-Strength Glass with an Intercept spacer system and that it has Low-E2 glass, enhanced with argon gas.
Any ideas the better offer in general for long term home use and energy savings between these two, also any ideas on the price offering as above?
I need to decide very quickly (within the week). Any help is appreciated.