Hydronic Heat Panel - Simplified

1. Inerface design:
1. Inlet/outlet of stove
2. Feedwater inlet
3. Outlets to 2 zones of hydronics, 500’ each
4. Panel stands 3” off wall
5. Components stand off 3” from wall
6. ​
2. Expansion tank - sizing - MBH = BTU rating of stove
• Use 4.4 gallon tank
3. [2] Pump - 1 speed - Taco 007
• General calculation - 10kBTU/1 GPM of flow at 20 degree T drop
• [4] isolation pump flanges or flanges
• 1 zone controller
• Aube thermostat with floor sensor
• Check valve
4. 4 loops of 250 ft each (manifold to manifold)
5. Thermostatic mixing valve
• Bypasses hot water to return to stove
6. Feed water pressure regulator
7. Air Purge
8. Tees , Cross , Ball Valve , Union, pipe to PEX, pipe to PEX 1 to ¾, elbow, 1” copper to NPT
9. 4 Branch manifold
10. Pressure/Temperature gauge
11. ¾” pressure relief valve

#6 ½” feed water pressure regulator

#7 air purge

to in-floor

circuit

Radiators

stove

½” expansion

Tank #2

#3 Taco 007 Pump

1 zone pump controller 3.c.

Thermostat

#9 4 branch manifold

#10 ½” Temperature/

Pressure Gauge

30 PSI p

Relief

Relief valve?

where?

stove

1” mixing valve #5

Radiators

stove

¾” PEX to 1” NPT

#9 4 branch manifold

#4

3.d.

Hydronics BOM

1. Control Panel Items

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• In-Floor Heat
1. [4] 300’ of PEX
2. [8] Crimp rings
3. [1] Clamp tool
4. [20] Metal mesh
5. Radiant barrier
6. [500] Cable ties
7. Vapor barrier
8. 2” insulation
• Radiators
• [2] 100’ ¾” PEX
• [14] ¾” elbows
• Utility Channel
• [264’] of 1”x4”
• Water supply ½” PEX to Utility room

MH 2 1

utility

room

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MH 4

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MH 1

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spacing between lines is 7”

utility channel

Bathroom

N

Hydronic Heating for MicroHouse 4

Test-Driven Requirements. Subfloor hydronics doc.

Requirements

• Integration with on-demand heater and existing 50 psi water pressure system (municipal water). This possibility has been vetted by Tech Support from Glenwood 7020
• Sidearm heat exchanger and hot water tank - installed later in bathroom from existing hydronic line tee-in
• Heated water to radiators and in-ground heat at 15 PSI, 180F
• Heat balancing of radiators and hydronics principles:
• Equivalent distance for all parallel circuits
• 4 Zones at 250 ft each
• Parallel radiator and in-ground system
• 100k BTU stove, and sized for 100k BTU output
• System balancing - via 50/50 divider valve?
• Allow Buderus radiators to be turned off
• Circuit starts at S side, 30k BTU from Buderus radiators can be turned off, diverted fully to in-ground heating

Hydronic System Calculations

• Use in-ground heating system
• Menards system sourcing
• Use Buderus radiators
• Design Manual - Buderus Panel Radiators
• Glenwood 7020 - 100k BTU
• System design - documentation from Woodstoves.net
• Inspiration - Drake’s Landing Alberta - year-round heat storage
• Future Work -
• Side Arm Heat Exchanger
• Large mass heat storage - Ben Nusz, MSTC, Wisconsin
• Solar concentrator install
• Charcoal gas generation

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Components and System Design

• 1200 sf house, 140’ perimeter
• Need: Need 40 BTU/sf of house - or 50k btu/1200sf.
• BTU to KW conversion
• Total 140’ perimeter of house, including 4 doors
• 51 foot length on North side of house, 36 for South, 54 for E and W
• Suggested design: parallel circuit for in-ground and hydronic radiators
• Baseboard radiators - 300-500 BTU/ft of radiator. Buderus - 2000BTU/ft of radiator
• Cost -
• Baseboard: $25/1000 BTU from Lowes
• Buderus: $50/1000 BTU for larger radiator

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Hydronic System Concept - v3

In-ground heating included

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Glenwood 7020 - 100kBTU

53 foot length on North side of house

utility room - no need for radiators

Buderus 12kBTU

Buderus 12kBTU

door

door

door

door

13 foot wall length

13 foot wall

40 foot wall length

• Use ¾” pex
• Going up to each Buderus: elbow

4’ baseboard

4’ baseboard

line under door runs in utility channel

N

• Strategy: use [2] 4-foot baseboard radiators on side of door

Utility Channel - Perimeter of House for Hydronic Line

Updates: do it on one side of house only, on MH1 side for water connection.

stem wall

N

2x4

stucco w/mesh

ply

brick

hydronics hot water

sand

2” insulation

2” insulation

outlet box (wood framed placeholder)

(12” long)

outlet

brick

ply

Wiring goes up to ceiling away from utility channel

Utility Channel with plywood cover

brick

2” EPS insulation

mesh

4 mil black poly

3” screws

6” screws

insulation goes 4’ out

4 mil poly

household water supply

Floor Preparation for Hydronics

• Start with gravel base - fill in so that the finished floor is even with top of foundation stem wall
• Stem wall is 9” tall
• 2” gravel level
• 6 mil poly
• 2” EPS Insulation
• 1” Sand
• Radiant barrier
• 4 x 8 rebar mesh - for tying down hydronic tubing foundation
• ½” Pex tubing
• 1” sand
• 2.5” brick

stem wall

gravel

2” additional gravel

6 mil poly

2.5” brick

2.5” brick

rebar mesh

3” sand on top of PEX tubing depends on wood floor contingency

radiant barrier

2” EPS Insulation

.5” left on top if use brick, -.5 if we use 2x4s

Contingency plan: if we are not capable of pressing bricks, then we need to frame the floor in using precision fit via ‘plywood edge ruler’ with pre-cut plywood sheets

Finish interior stucco 2” below stem wall

poly

CEB Floor Contingency Plan

PLAN B:

• Do brick sections in Utility Room and Office, starting with Office
• Fill in rest with framing and wood floor

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PLAN C:

• All wood framed floor

8x8 framed floor section - 2x4s sitting on level ground.

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51’x15’ space

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8’x6.5’ framed floor section

[6]

[6]

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Brick

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utility channel

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Brick

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8’x2x5’

8’x2x5’

(one piece has cutout of 3.5’x6.5’ for stove cement slab)

[1]

[1]

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51’x15’ space

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1

Parts

Stove Connection Detail -Components

MAIN COMPONENTS

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1. Water Fill Line
2. Expansion Tank #15 - 26 Gal. Max.
3. [2] Taco 007 Circulating Water Pump (110 volt)
1. Link
4. 1" Sw. Mixing ValveTaco 5000 Ser
5. Air Purge - 1" FPT - Air Purge (Does not includeAutovent)
6. TACO Single Zone Switching Relay
7. Taco 1"- 3 Way Zone Valve
8. 1" AIR Purger to pull air from system
9. 1/2" NPT Pressure Reducing Valve
10. Temperature Sensor
11. [2] Temperature Pressure Gauge
12. Temperature sensor turns pump on and off
13. 3/4" x 300' - O2 Barrier HeatLink® UV Stabilized PEX pipe
14. [2] Baseboard heaters (ordered)
15. ​

FROM WOODY

1. 1" Pump Flange- 1" Ball Valve x 1" Female Sweat
2. [2] 1" Pump Flange- 1" Ball Valve x 1" Female Sweat
3. Autoevent
4. 3/4" Boiler Drain- Iron Pipe
5. 1" Check Valve Butterfly
6. Boiler Treatment - 5 Gallons
7. [2] 1 1/2" x 1 1/4" Black Reducer
8. PH Test Kit ( 50 Strips per Pack )
9. [2] 2 Loop SS Manifold with Flow Meter Balancing Supply and Z.V. Return
10. 3/4" Pipe to Manifold connector with nut
11. AQUA PURE Head and Filter Anti Scale and Corrosion Filter
12. [2] BUDERUS Flow Setter 0133G7482 w/Red Cap. - 2
13. [2] BUDERUS Oventop Radiator Sonsor Head Thermostat. -2
14. [4] BUDERUS Radiator Compression Fitting PEX 3/4" US - 4 of them

Glenwood 7020 Stove

pump

pump mounted with stiff connection on 1.5” pipe, reduced to 1”? inlet of pump

1” to ¾” bushing

¾” pipe to PEX barb

Safety

Aquastat

water supply line, 50 PSI, ½” pex

return water, 15 PSI, 140F

½” PEX barb to ¾” FPT

Temperature Sensor

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120V power to pump

FITTINGS

• Buderus compression fitting
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note: this is prior to panelizing all the hydronic components on a panel, which is more consistent with a modular approach.

Hydronic Basics Video

• Taco Flo Pro Team
• Tech support form
• Example Taco Flo Pro Training - Hydronics Step by step
• Also has free software for calculations
• FloPro University Videos
• http://digital-magic.tv/digitalplanet/resources/109_Hydronics%20Step%20by%20Step%20Cheat%20Sheet.pdf

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Utility Room Plan

Future

Addition

• Stove 1’ away to south CEB wall
• Stove 4’ away from W door
• 4’ to E and W walls
• Fan can be placed W of stove for additional forced air heat into house
• There is a long room to the W
• Future expansion: 500 gallon water tank in adjacent room, and solar thermal panels with mass heat storage bed to E
• Sidearm Heat Exchanger + water tank to be placed in bathroom

Utility Room

12’ wall

16’ wall

door

500 gallon water tank

door

Stove

door

N

Future

Mass

heat

Storage

Greenhouse

Integrated

With

Solar

Thermal

Hydronic Panel

Module

Hydronic Heat Panel Mount in Utility Room

• Mount 3’8”’ long 2x4s to the wall of the utility module
• To make edges nice, use 2x4’s that are 2” shorter than the plywood height, so stucco can be applied under the mouning panel
• Use 4x8 plywood covers the edge
• Use 4 inch screws to screw 2x4s into wall at 6” of spacing
• This can be done prior to interior stucco
• Assemble entire hydronics panel separately, then mount it on the 2x4s
• Locate this based on stove fittings:

plywood edge

1

Stove

2’x3’

hydronics panel

door

12’ wall length

utility channel

stove fittings

Hydronic Heat Panel with Backup Pump- 2

• Inerface design:
• Inlet/outlet of stove
• Feedwater inlet
• Outlets to 2 zones of hydronics, 500’ each
• Expansion tank - sizing - MBH = BTU rating of stove
• Use 4.4 gallong tank
• [2] Pump - 1 speed - Taco 007
• General calculation - 10kBTU/1 GPM of flow at 20 degree T drop
• [4] isolation pump flanges or flanges
• 1 zone controller
• Aube thermostat with floor sensor
• Check valve
• Manifold - 4 loops of 250 ft
• Thermostatic mixing valve
• Bypasses hot water to return to stove
• Feed water pressure regulator
• Air Purge
• Tees , Cross , Ball Valve , Union, pipe to PEX, pipe to PEX 1 to ¾, elbow, 1” copper to NPT
• 4 Branch manifold
• Pressure/Temperature gauge
• ¾” pressure relief valve

stove

water fill line

air purge

Complete Manifold

check valve

mixing valve

to Utility Channel for in-ground PEX

Radiators

In-Ground Tubing Design

• Interface design:
• In/out for circuits through divider wall between utility room and meeting room
• Plastic staples into underlying 2” EPS
• Basics of length
• no more than 300’ for ½” tubing
1. Use 250’ for 4 team swarm
• For 40’ runs, allows for 6x back and forth
• 24 lines over 13’ means

Hydronic Floor Layers

Radiator Detail

Hydronics 3D CAD Examples

1. Radiant Floor Heat Substation
2. Residential Boiler Room
3. 1/25 hp Circulator
4. 15 lb Expansion Tank

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