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Space heating 160 sf picture tile roof

 

tilt space

Chill Chaser alone

Chill Chaser 140

Efficiently blows solar heater water into room using built in heat exchanger fan coil with built in pump and thermostat.  Simply connect Chill Chaser pump to solar tank hot out and return to solar tank cold feed

DrainBack Retro picture

Retro 10 Gallon Drainback Tank includes Internal Heat Exchanger,

2 pumps and Differential Controller.

Solar Chill Chaser for Space Heating

 

 

 

 

 

 

 

 

 

 

 

Skyline Retrofit Space heating kit shown uses any standard water heater and includes Skyline Collectors, Silver value kit,

Chill Chaser 140,

Drainback Tank with internal heat exchanger, 2 pumps and differential controller

 

SPACE HEATING OVERVIEW

Note: Solar space heating is complicated and while SolarRoofs.com offers the easiest to install collectors available, a qualified HVAC contractor is usually needed to design the system.  SolarRoofs.com offer some prepackages systems as shown below but beyond that it does not design systems.  Please have your HVAC contractor contact us if our prepackaged systems do not meet your needs.  Remember, most cost effective solar option is usually solar water heating.

Because of its ThermaFin “Crystal Clear” all copper absorber, well insulated box, “double-glazed” performance and ease of installation, many homeowners and dealers use our Skyline® collectors for their space heating systems. Space heating systems are much more complicated than water heating systems. They also cost more, can be prone to over-heating and need the most energy when the least is available. That said, properly designed glycol drainback closed loop systems have performed well and have made many customers very happy.

General guidelines:

A rough rule of thumb is that 10 to 15% of the living area in a home is required to provide 50% of the space heating in sunny winter areas like Colorado. More area is required in cloudier areas like New England and most other northern states. Naturally the more efficient a house, the less area is required. In areas like San Diego where light space heating is required, as little as 4% of the living area in a home is required to provide 50% of the space heating.

Remember, the best savings are initially gained by the conservation measures you take such as increasing insulation and reducing infiltration.

The larger the system, usually the lower the cost per square foot. Many times the actual size of a system is dictated by budget, rather than ideal performance.

Air and radiant floor heating systems are a good match for solar space heating because they usually require heat at around 100 degrees F for good performance.

We provide the system basics but you may need to seek out a good heating specialist to design the integration of the solar system with your space heating system, or use our easy to connect Chill Chaser.

We recommend at least 160 square feet of collector area to make a reasonable contribution to space heating needs but smaller systems can make a good "area" contribution.

A solar space heating system is much more sensitive to tilt and orientation than a solar water heating system. For space heating the collectors must be facing (oriented) within 15 degrees of TRUE South, and need a tilt within 10 to 15 of latitude, usually the steeper the better to face the low winter sun.We recommend a 50 degree to vertical tilt.

Note: Latitude is the elevation angle of a point above the equator.

Systems mounted on vertical South walls have had excellent results because they collect the low winter sun and usually do not over-heat in the high summer sun. Snow on the ground can increase performance by actually reflecting solar rays onto the wall-mounted collectors. The long, light weight collector Skyline® is excellent to mount on a wall or as an "awning" mount tilted off the wall.

Do not use solar with baseboard or radiator heating. The 150 to 180 degree F temperatures required for convection are much too high for the solar collectors to operate efficiently during the winter. If you have baseboard heat consider using a "Fan Convector" such as the Turbonics Chill Chaser or Myson unit. They are great for solar space heating as they have the fan, heat exchanger, thermostat and pump all in one attractive unit. The Lo-line or the Slim-line are the ones we have used in the past.

People often make the mistake of thinking the solar will "preheat" the baseboard water when the baseboard water is actually in a closed loop leaving the boiler at usually 160 F and returning at 150 F. 

A solar water heater can save a lot of money by preheating the domestic water going into an oil or gas boiler and by allowing the boiler to be turned off during the summer.

A trend we have seen is to turn off the boiler in the summer and use the upper electric element of the Rheem Heat Exchanger tank for the small amount of backup required during the times the boiler can be turned off.

On a sunny cold winter day, a flat plate collector can provide from 400 to 700 BTUs per square feet of collector area.  Your heat loss needs to be determined for proper sizing.  An example of a typical size array is 8 collectors for 160 square feet. This array would provide the energy of about what one gallon of propane in an 80% efficient heater would produce per day. 

Below you will find links to five Space Heating diagrams to further guide you in your design:  

1. Space Heating using a Chill Chaser.

2. Radiant or Air Space Heating using Heat Exchanger inside Tank, please see: HE tank Space Heating.  

3. Radiant or Air Space Heating using direct space heating loop, please see: Direct Space Heating

4. Radiant or Air Space Heating using indirect space heating loop, please see: Indirect Space Heating.

5. Radient Slab used as storage by directly feeding solar heat into the slab after domestic water has been satisfied. Please see:  Direct Solar Radiant Floor Storage.


Skyline4 Drainback Closed Loop Space Heating Systems

110 Volt for Hard Freeze Climate

Qualifies for Federal Tax Credit under SRCC OG-100 

Skyline4 Space Heating Systems are generally custom and need specific design help from SolarRoofs.com or your HVAC Contractor.  They can be either Closed loop Glycol or Glycol Drainback. Drainback is preferred to prevent summer overheating when the collector size is close to or exceeds the s/f per gallon of storage ratio.

Skyline collectors can be used with the Drainback options below when the lines are sloped down to the drainback tank, the collectors are level and a Propylene Glycol mixture is used.  Special drainback collectors are available.

 

Drainback system tanks are set up to connect to an internal heat exchanger tank (DBT) such as the Rheem / Rudd or Richmond Heat Exchanger (HE) tanks, or with a very efficient heat exchanger that is inside the drainback tank itself (DBI), they can be connected to any standard water heater. A sophisticated 110 Volt Digital 4 Readout Differential Controller with 4 sensors powering high quality 110 Volt pump(s) are included.  

 

Orientation, and Tilt are very important to space heating systems.  Because the sun is so low in the winter sky, for best winter operation the collectors need to be facing within 15 degrees of True south and we recommend at least a 55 degree tilt angle for best winter operation and to help prevent summer overheating. Flush mounting collectors on a south wall has proven quite effective and sun reflection off of white rock or snow in front of the collectors helps performance.

 

NOTE:  Because of the need for custom design, only 80, 120 and 160 s/f system packages are priced below.

 

Drainback space heating systems:

 

For Drainback systems the collector feed and return lines must be sloped down to the drainback tank and the standard serpentine Skyline collectors must be level to facilitate drainage. Special fully draining custom Horizontal and vertical Skyline collectors are available that eliminate the need for propylene glycol in the solar loop.  Drawings, pictures and / or diagrams are needed for this planning process.

 

DBT: Drainback tank for use with a tank that has an internal heat exchanger. This closed loop system circulates Non-Toxic Propylene Glycol Antifreeze solution through the Skyline collectors, then through the drainback tank and then thru the heat exchanger in the storage tank. 

 

DBI: Drainback tank with built in internal heat exchangers can be connected to any existing water heater as a second pump moves potable water through a heat exchanger in the drainback tank.   

 

Currently these systems are available only in Silver configurations with 20-01 collectors. Our custom rail mounting system is included. The drainback tanks are delivered directly from the factory in Florida.

 

Drainback overheat protection is provided by a setting in the controller that limits the temperature in the storage tank and turns off the pump once that temperature is reached and the fluid in the collectors drains back to the drainback tank.  For horizontal collectors, any remaining glycol is “blown” into the Drainback upon low pressure steam out.

 

Sizing Your Space Heating System:

 

Size the total area of Skyline collectors to be 4-15% of the floor area to be heated (depending on the insulation of the building). Choose the package that most closely matches the square footage of your project and the climate you live in.  Milder areas like coastal or southern areas can be effective with as little as 4% of the floor area while very cold sunny areas may need 15%.  You may want to do an area specific system where smaller collector areas will work.

 

Example of a 2000 sq./ft. home:

 

2000 x 0.08 (6%) = 120 sq. ft of Skyline collector area

2000 x 0.08 (8%) = 160 sq. ft of Skyline collector area

2000 x 0.1 (10%) = 200 sq. ft. of Skyline collector area

2000 x 0.12 (12%) = 240 sq. ft. of Skyline collector area

2000 x 0.08 (15%) = 300 sq. ft of Skyline collector area

 

Configurations:

 

SolarRoofs.com provides basic diagrams for space heating systems but there are so many variations that it is not possible to cover them all. 

 

System space heating kits are shown with various amounts of collectors, an Eagle 2 controller with 4 sensors, the Drainback tank, 1 or 2 pumps with one of them being a high head bronze pump for the solar loop. Tilt kits are available at (New Prices) per collector. 

 

“Chill Chaser” Systems

 

The Chill Chaser is a unique and very simple concept for warming rooms.

 

These are the simplest systems with a complete Turbonics Hydronic fan coil with built in circulator heating unit that can be placed where ever needed.   It works on the principle that when the thermostat in the Chill Chaser senses that there is a need for heat the fan in the Chill Chaser turns on and blows the heat out if the water to air coil into the room.

 

Connection of the “Chill Chaser” is simple as the unit simply pulls heat from the hot side of the solar tank and returns it to the cold side.  It is important that the solar tank be “pure” meaning that the tank must be 100% solar to be most effective. If the electric backup is connected you would be heating with electricity, not a good plan.  Also as with all solar system, there must not be a recirculation loop connected to the solar tank. 

 

A simple Electric water heater single pole, double through thermostat (SPDT) mounted in the standard water heater position can be used to activate the pump circuit so when there is a call for heat the pump will only turn on if there is enough heat in the solar storage tank to make a contribution.  

 

Other control options include the Eagle set point controller or a SPDT Remote Bulb Thermostat such as the Sunne TC119 available from Grainger under stock # 2E848.

 

Homes with radiant floors and air heating systems are good candidates for solar heating but homes with baseboard heat are not because the temperatures required for proper baseboard convection are too high for efficient solar operation.

 

Solar Chill Chaser for Space Heating Space Heating Systems

(80 Square Foot Drainback System # 200144C DBI 10 + Chill Chaser # CC-140)

   The Chill Chaser CC-140 with built in fan coil, pump and thermostat is an 

   ideal low cost option to quickly add solar heat to a room or area or the

   entire home with multiple units.

  The picture to the left shows a Chill Chaser (Lower Right) in front of a

   standard water heater with a self contained DX-R Retrofit Kit Drainback tank

   with built in heat exchanger on top.

   The DX-R 10 Retrofit Kit can be used with up to 80 s/f of collector area and connects to any standard water heater.  This setup only works efficiently when the tank is powered purely by the sun.

   Other systems are shown and priced below, tanks are not included.

  Please call

1-888-801-9060

for prices on prepackaged systems.

 

 

The Silver Skyline4 Drainback  system includes the basic parts you need to add solar water heating. As with other typical solar water heating kits, no fittings or tank connections are included so soldering and technical skills are required to finish these systems.

 

Silver Skyline4 High Value Drainback system includes:

  •  SolarRoofs.com’s exclusive Light Weight, Easy to Install Skyline 20-01 collector (s) with Choice of Musket (dark brown or Dove (medium) gray trim colors. 
  • Exclusive predrilled collector rail mount system with color coded “U” Brackets, Ell mounting brackets,  washers and  tec screws.
  •  10, 15 or 20 gallon Drainback tank with or without  heat exchanger
  •  1 or 2 High quality 110 Volt Circulators including one high head pump for the solar side
  •  Sophisticated 110 Digital Readout Differential Controller with high temperature limit 
  • 1, 1/2" male low pressure Relief Valve
  • 1 Hose bib with ½” male thread
  • Tank combo drain valve with ¾” female fitting.
  • 2, ½” compression unions plus one union body per additional stacked collector.
  •  4, ½” x  3/8” copper reducing adaptors
  •  2’ of 3/8” copper tubing
  • Installation Manual, Operations and Maintenance Manual, Labels
  •  2 additional 10k sensors for a total of 4 digital temperature readouts.

 

DBI Skyline4 with 10 or 15 gallon Drainback tank with an Internal Heat Exchanger storage tank (SILVER): 20-01 collectors with 2 AC pumps (one high head and 1 small pump for the domestic water loop, digital readout differential controller, for use with any standard water heating tank.

Model #

Price

   (4) 20-01 (80 ft2) (80 gallon tank recommended)

200144C

DBI 10

(6) 20-01 (120 ft2) (120 gallon tank recommended)

200146C

DBI 15

(New Prices)

(8) 20-01 (160 ft2) (240 gallons of storage recommended)

200148C

DBI15

(New Prices)


 

DBT Skyline4 with 10 (120 s/f) and 15 (160s/f) gallon Drainback tank for use with an internal heat exchanger (HE) storage tank (SILVER): 20-01 collectors with high head AC pump, digital readout differential controller, for use with an internal heat exchanger storage tank.

Model #

Price

(6) 20-01 (120 ft2) for 3 to 5 people (120 gallon tank recommended)

200142C

DBT10

(New Prices)

(8) 20-01 (160 ft2) for 4 to 6 people (240 gallons of storage recommended)

200143C

DBT15

(New Prices)

Rheem | Rudd | Richmond   80 Gallon  81V080HE1 tank, Delivered

81V080HE1

New Prices

Rheem | Rudd | Richmond 120 Gallon  82V120HE1 tank, Delivered

82V120HE1

(New Prices)

Extended Tank Warranty from 6 to 10 years, includes 2nd Anode Rod

EW10

(New Prices)

 

 

Skyline4 Collector Configuration Options:

Standard Color:  Musket Brown (a dark architectural brown)

C101

(New Prices)

Standard Color Option:  Dove Gray (an attractive Medium Gray)

C109

(New Prices)

Optional Trim Colors:  Choose from one of 24 Optional Colors

CXXX

(New Prices)

Tilt kits, heavy duty custom Collector Array Installation Kit, per collector:

SC01

(New Prices)

 

Space Heating Skyline4 Options

Tempering Valve (3/4” C x C x C)

MV01

New Prices

2, 10 K sensors for 2 additional Differential Controller Temperature Readouts.

210K

(New Prices)

Quad Flow Diverter (with 4 - ¾” solder connections for duel tanks)

QF34

(New Prices)

250º F 2" Temperature Gauge with ½” MPT fitting

TG01

(New Prices)

Insulation:  High Temperature Solid 1/2" wall for 1/2" tube X 6' long

IS12

(New Prices)

Insulation:  High Temperature Solid 1/2" wall for 3/4" tube X 6' long

IS34

(New Prices)

Chill Chaser CC-140 with built in fan coil, pump and thermostat

CC-140

(New Prices)

 

 

 

Honeywell 3 way valve, bottom inlet, 3/4" sweat

V8044E1

(New Prices)

Honeywell 2 way valve, 3/4" sweat

V8043E1

(New Prices)

Eagle 2 Controller with line cord and 2 sensors

DC02

(New Prices)

Eagle Setpoint Controller with  2 sensors

 SP02

(New Prices)

Low Voltage Mercury Switch Thermostat (Gr) - White

2E897

(New Prices)

White Rogers DPDT water heater thermostat

756-1

(New Prices)

24 volt  to 120 Volt relay Honeywell (Gr)

2E866

(New Prices)

0-120 F bulb Thermostat - (Gr)

 4MY93

(New Prices)

3/4" C x C Swing Check Valve

CV34C

(New Prices)

Expansion Tank # 30

ET301

(New Prices)

Vacuum Breaker – ½” MPT

VB12

(New Prices)

Air Vent – 1/8” MPT

AV18

(New Prices)

Ball Valve ¾” C x C

BV34

(New Prices)

Hose Bib ½ MPT

HB12

(New Prices)

Taco 006 PU/TA - 006B - 110VAC Sweat

006BS

(New Prices)

Taco 008 Pump, Bronze with 3/4" flanges

009BF

(New Prices)

Taco 009 Pump, Bronze with 3/4" flanges

008BF

(New Prices)

 

 

 

 

 

 

 

 

Skyline collectors can be used with the Drainback options below when the lines are sloped down to the drainback tank, the collectors are level and a Propylene Glycol mixture is used.  Special drainback collectors are available.

10 gallon Drainback Reservoir, Stainless Steel with level tube - Up to 160 s/f

DB10-SS

(New Prices)

10 gallon Drainback Reservoir with 10 s/f Heat Exchanger - Up to 80 s/f

DB10-10X-SS

(New Prices)

15 gallon Drainback Reservoir, Stainless Steel with level tube - Up to 320 s/f

DB15-SS

(New Prices)

15 gallon Drainback Reservoir with 15 s/f Heat Exchanger - Up to 160 s/f

DB15-15X-SS

(New Prices)

20 gallon Drainback Reservoir with 20 s/f Heat Exchanger - Up to 400 s/f

DB20-20X-SS

(New Prices)

10 Gallon reservoir tank with 10 sq.ft. HX, converts any existing water heating tank into a solar water heating system. This system is just parts and requires skill to assemble: Taco 009 High Head Solar Pump (we recommended up to 24’ between bottom of the drainback tank and the top of the collectors), Flange set, Bronze 003 Taco Pump 1/2" Sweat, Differential Control with Sensors (EAGLE-1) Boiler Drain

DX-R 10 Retrofit Kit

(New Prices)

15 Gallon reservoir tank with 15 sq.ft. HX, converts any existing water heating tank into a solar water heating system. This system is just parts and requires skill to assemble: Taco 009 High Head Solar Pump (we recommended up to 24’ between bottom of the drainback tank and the top of the collectors), Flange set, Bronze 003 Taco Pump 1/2" Sweat, Differential Control with Sensors (EAGLE-1) Boiler Drain

DX-R 15 Retrofit Kit

(New Prices)

1 Gallon of Heavy Duty Pressurized loop Propylene Glycol, For down to -54 F and up to 300 F / 10 year life. Mix 50/50

PGHD

(New Prices)

1 Gallon of Heavy Duty Drainback tank Propylene Glycol without additives, For down to -54 F and up to 300 F / 10 year life. Mix 50/50

PGDB

(New Prices)

 


Skyline 20-05 AIR COLLECTORS

SolarRoofs.com Exclusive Air Collectors are very light weight and comparitively easy to install.

We are currently developing the systems so balance of system components such as fans, ducts etc. will need to be purchased separately. The pictures below show some details.

Please See:

Skyline 20-05 Configuration Drawing   Air Collector Plenum Installation Drawing

 

10-05 air collector 1 x 8 inch vent slot with seal
10-05 Air Collector
1" x 8" connection Air Slot
Slot with Seal
6 installed system 20052C Back side
6" Round Hole Cut
2, 20-05 Air Collectors on Warehouse
Back Side of Air Collectors
air detail
connection rail
Duct and Fresh Air Inlet
Special Brackets Secure Collectors
Tilt Kit Rail to Leg Connection

SolarRoofs.com's low cost Skyline 10-05 (10 s/f, 20" x 6') and 20-05 (20 s/f, 20" x 12') Air Collectors are a new generation of light weight, easy to install air collectors that are very effective and delivering Btu's directly into the home, office or warehouse.

General Sizing Guidelines

Systems should be sized to have a minimum of 1 sq /ft. of collector area per 10 sq/ft of floor area, it can be less in warmer areas, more in very cold climates. These collectors can be custom configured with holes cut, seals and racks supplied to fit your specific needs. 4", 5", or 6" holes can be made at the center of either end and 1" by 6" air slots can be made at each corner to facilitate series air flow through multiple stacked collectors.

Always insure that fan pulls air through collector, never push air through collector(s).

 

Standard Color is Musket Brown (CO101), with a Free option of Dove (Medium) Gray (C109)

(Other color options are available at an extra cost)

See other sections for tilt kits.

 

Note: Fill in # of collectors

 

Skyline Air Collectors:  These high performance air collectors can be custom configured with 1” x 6” air holes in any of the 4 corners or 6” round holes in the bottom end(s) of the collector.

10-05 Single piece unit (uncut, Includes 4 mounting ell kit)

1005#C

20-05 Single piece unit (uncut, Includes 6 mounting ell kit)

2005#C

Custom fitted air holes, Per hole includes consulting and side seals

AHC1

Skyline 20-05 Air Collector Configuration Options:

Standard Color:  Musket Brown (a dark architectural brown)

C101

Standard Color Option:  Dove Gray (an attractive Medium Gray)

C109

Optional Trim Colors:  Choose from one of 24 Optional Colors

CXXX

Air Collector Tilt kits, heavy duty custom Collector Array Installation Kit, per collector:

SC01

Wall Duct Kit with 5’ long x 4” flex ducting4” to 3” reducer and louvered wall duct  (Gr):

5C106

4” insulated flexible duct x 25’ long

3TR11

4” Adjustable Plastic Grill

5C520

4” back draft damper

5C523

4” 90 cfm Centrifugal in-line duct fan

6C509

6” 190 cfm Centrifugal in-line duct fan

3TJ96

Eagle Setpoint Controller with  2 sensors

SP02

Low Voltage Mercury Switch Thermostat (Gr) - White

2E897

24 volt  to 120 Volt relay Honeywell (Gr)

2E866

0-120 F bulb Thermostat - (Gr)

4MY93

 

                            

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