I purchased the Trane XL15i 4-ton (condenser no heat pump) and the XV95 100k btu furnace with a 5 ton e-coil in NJ for $8800 after a $300 rebate from trane and a $700 rebate from the utility company. Also included was the small Trane bypass humidifier (which was listed as $200) and the TC803 thermostat, a chimney liner, 10 years parts warranty, 2 years labor. My actul SEER for my components is 14.5 for the 15i. From what I can tell all things being equal, even though it is called a 15i, they can be configured to deliver as high as 16 seer (probally for the smallest version)but my unit is one of the higher ton versions (4-ton) and even though I have the furnace with the variable speed blower and the higher 5-ton coil for improved efficiency, My unit still can only get up to 14.5 Seer. I have a pdf of the ARI certificate but I don't know how to attach it. Key1

tigerdunes is this a good thermostat match for my system I like the fact I could have remote access though the web Honeywell Prestige IAQ Comfort System - YTHX9421R5051 FEATURES: •Control heating, cooling and IAQ equipment with only 2 wires at the thermostat. Heating, cooling and IAQ equipment wires to the Equipment Interface Module. •Patented interview based programming and installer setup. •RedLINK wireless communication. •Configurable for residential and light commercial applications. Meets commercial code and is title 24 compliant. •Light commercial - commercial language (occupied and unoccupied), schedule holidays and custom events, remote setback, economizer and time of day. •Delta T Alerts and Diagnostics informs customers when their system is not operating as expected with instructions to contact the dealer. Provides a sense of security and greater comfort while generating repeat business. •All Prestige® IAQ 2.0 systems come standard with a return and discharge air temperature sensor to measure Delta T. •Alerts and User Interactions Log - Keeps a searchable history of alerts and setting changes to the thermostat to determine if there is a system malfunction or if the issue was caused by user error. •Customizable Service Reminders allow dealers to remind their customers when its time to call for service, when their warranty is expiring and to provide customized alerts. •USB port for transferring Installer Setup, Customizable Reminders, Custom Events and Holidays to multiple thermostats. •USB port for adding the dealer's full color business logo on the screen. •3 assignable outputs to control humidification, dehumidification, ventilation and a stage of heating or cooling. SPECIFICATIONS: Application Up to 4 Heat/2 Cool Heat Pumps Application Up to 3 Heat/2 Cool Conventional Systems Programmability 7-Day Multiple Day Programming or Non-Programmable Changeover Auto or Manual Color Arctic White Switch Positions (System) HEAT-OFF-COOL-AUTO-EM.HEAT Switch Positions (Fan) AUTO-ON-CIRC Power Method Hardwired Terminal Designations R, C then RedLINK to Equipment Interface Module Electrical Ratings 18 to 30 Vac Frequency 60 Hz Frequency 50 Hz Electrical Connections Screw terminals Operating Temperature Range (F) 32 F to 120 F Operating Temperature Range (C) 0 C to 48.9 C Setting Temperature Range (F) Heat: 40 F to 90 F; Cool 50 F to 99F Setting Temperature Range (C) Heat: 4.5 C to 32.0 C; Cool: 10 C to 37.0 C Humidity Setting Range Cooling: 40 to 80% RH. Heating: 10 to 60% RH. Stages Up to 4 Heat / 2 Cool Heat Pump or Up to 3 Heat / 2 Cool Conventional Outdoor Sensor N/A Remote Sensor N/A Operating Humidity Range (% RH) 5 to 90% RH, non-condensing Includes THX9421R5013 Thermostat, THM5421R1013 Equipment Interface Module and two C7735A1000 Duct Sensors Comments Tri-Lingual Display (selectable for English, French or Spanish) Used With RedLINKT enabled thermostats and accessories Display Size 8.06 sq in. Humidification Setting Range 10 to 60% RH. Dehumidification Setting Range 40 to 80% RH. Voltage 18 to 30 Vac

Tiger dunes, show us your numbers. Have you ever tracked customer use? Understanding the experiential base of your comments would help us understand whether to accept or dismiss your claims. Claims about efficiency "if running on low" are hard to reconcile, and cause to question unsupported claims you make. If you have data or anicdotal evidence, please share. PSU, Trane modulates down to 35k or so. This means when load is less than 35k, you basically have an oversized single stage furnace without the heat pump. Knowing when this happens for your house would be very nice. I have a client, 3200 sf 12 year old moderate build quality, 45,000 btu load (60k infinity runs medium stage) at 2f outdoors. Let the equipment tell you, equipment won't lie about load. If you set the pump/furnace switchover properly, the pump will kick in before that point and manage heat replacement down to IT'S minimum output of 1.5 tons before IT effectively becomes oversized single stage. If you are paying 10c/$1 kwh/therm, your breakpoint where gas btu at roughly 90% delivered eff meets your pump is probably between 20-25f. Your dealer should have an equipment specific calculator for this.

12" return is almost definitely too large for the basement. I have a 6" return in my basement, and I have actually found it to draw ~200-240 cfm (using a barometer) -- plenty in my case with just a few supply outlets. In your case, I have no way of knowing for sure, but I assume it's piped directly (or near) to the inlet of the furnace blower compartment, in which case there is a lot of pressure and it's sucking in a lot of air and making the basement quite negative (not a good thing). So your basement return in that state may have been drawing close to, if not more than, half of the return air the entire system requires. Is the basement floorplan open to the rest of the home or closed off? If typically closed off, I wouldn't be surprised if the basement door had a tendency to close itself when the system was operating. I suppose putting cardboard over half of the grille is one way to reduce its intake capacity. Your older furnace does not (presumably) have a variable speed blower that will vary its RPM in order to maintain a specific CFM setting. That means that while you are noticing more airflow from the rest of the returns throughout the home, in totality your system is receiving less airflow -- no, not a good thing considering your ductwork is likely undersized to begin with. You have decreased its return capacity. To get the SAME (total) airflow from the rest of the returns throughout the home that were not previously drawing as much air generally requires the system to operate at an increased static; with older PSC type blower motors (non variable-speed), this results in decreased airflow. Hence variable speed motors are often termed "constant CFM" as they can adjust (increase) their speed to maintain a constant airflow (cfm) when subjected to as much as 0.8-1.0" of external static pressure (vs. conventional blowers max. of 0.5", which many duct systems are nowhere close to achieving despite it being the standard "design" figure). You can think of the ESP number as a measure of resistance to airflow, in a sense. The fact that you say the (supply?) ductwork is now much warmer is both concerning and telling. It is unwise for me to say much more than that as I am not there to evaluate your system design and give an accurate assessment of the ductwork design/layout, etc. But it suffices to say, with the info you've provided us, your return ductwork is now more restrictive, which would exacerbate any existing airflow issues. You do say it met the set point without tripping the high limit. Please let us know how the system performs as it gets colder out and the system runs more often in its present state. I would like to ask what made you consider replacing the systems (and proceeding to get 8 proposals) in the first place? Are there functional problems with the existing equipment (besides most likely being oversized) or other comfort issues? By now we have at least established that it is likely the existing equipment is a bit oversized and the existing ductwork is marginal -- but that is (unfortunately) exceedingly common on most residential construction. Are you after more efficiency, better comfort, both? It helps us to help you when we know more about your current system's performance. Lastly, I would not factor online reviews into your decision too much. An air conditioner or furnace is not like most appliances (such as a refrigerator) in that the installation practices and quality can make or break even the best equipment selection. There is a good chance that many (but not all) of the negative reviews you read were due to installation errors. This post was edited by ryanhughes on Fri, Nov 22, 13 at 9:51