Alternative Technology Assn Forums

1. 

   rangoon
   Member

   Hi I am looking to build a house in Melbourne with Simonds Home.

   They offer

   - Gas Duct heating unit in roof space.
   - Rheem 160 litre lo line gas boosted with 24L Continuous flow booster, one(1)
   - Solar collector and the necessary electrical and plumbing connections.
   Note: Panel and storage tank positioned at the builders discretion. Additional solar panel maybe required at clients expense subjected to orientation of dwelling.

   ( Will be looking to upgrade to Rheem Premier Loline gas boosted solar <2 solar collector system;270L Tank;27L/min Gas Booster> Miss like to use bath)

   I am offer upgrade for cooling.

   1 : York 1.5HP (3.2kw) wall mounted reverse cycle split-system air conditioner to bedroom (up to 25m2) and York (4.8kw) wall reserve-cycle split-system air conditioner to nominated location (up to 40m2) in lieu of gas ducted heating.
   Note: Includes air conditional drainage pipe connected to stormwater drain. Back to back installation to single story homes only.
   ($4,131)

   2 : York 2.75HP (6.9kw) wall mounted reverse cycle split-system air conditioner to nominated location
   Note: Includes air conditional drainage pipe connected to stormwater drain. Back to back installation to single story homes only.
   ($3,801)

   3 : Bonaire Summerbreeze SBM65 evaporative cooling system to six multi-directional ceiling mounted outlets, including cold water point and electical point.
   ($5,810)

   I am also wanting to install the following:-

   - Supply and install 2.0kW photo-voltaic package. Supply and install by Bradford Energy solutions. Include :-
   - 250 watt CNPV solar PV panels
   - 2kW Aurora Inverter - Installed near meter box
   - Roof mounting system (Tiles)
   - All wiring and system connections
   -System certification - CES

   Note: Does not include bi-directional meter; provided by electicity distrubutor.
   All eligible STC's are allocated by purchers to Bradford Energy Solutions.
   ($5,194)

   [img]http://www.apim.com.au/wp-content/uploads/2016/09/Kallo.png[/img]

   House Floor area is approx. 18.5 sqrs
   I am opting for
   - R2.5 Gold high-performance glasswool wall batts to external walls
   - R5.0 glasswool batts to ceiling/roof.

   I am seeking advices from the knowlegable and experience user.

   My question are :-

   - Do i require split system or a Bonaire Summerbreeze?
   - I am looking to get the Bonaire Integra II instead as during the months when it is not in use. Bonaire’s Enviroseal duct shutter keeps warm air in and draughts out. It’s fully automatic and fits into the duct of your evaporative cooling system.

   - Type of solar panel, does it make a different?
   - How many Kw solar system will be right for me to cool and heat the house and running normal whitegoods, security system and network daily ?

   Thank you.

   Posted Thursday 15 Sep 2016 @ 1:44:32 am from IP #
2. 

   Bushwalker
   Member

   Hi Rangoon,

   To display an image, you need to use html img tags. Here it is:

   

   Just a couple of questions.

   During winter, the sun is low on the northern side of the house. The best opportunity would to have a suitable roof overhang and enough shade via any effective means during summer to keep the sun off the glass. You want as much winter sun onto the glass and into the rooms as you can get. Putting the garage on the northern side will shade much of the house during winter and keep the warmth of the sun out of the house. It would be better to have the garage on the southern side.

   The image suggests that summer sun will come from the south? During the height of summer, the sun will cross the sky overhead from east to west. If the house is not aligned exactly east to west, it could get some minor sun on the southern side. According to the image, that would likely be some summer sun on the south west wall of the bedroom during the afternoon. Adequate roof overhang or shade would be a way to minimise heat ingress in that case.

   Posted Thursday 15 Sep 2016 @ 7:26:30 am from IP #
3. 

   KayKay
   Member

   Hey Rangoon, I really agree with Bushwalker. Why should your garage be nice and warm and have all that lovely sun during Winter time? See if Simonds will let you flip the garage with Bedroom 2 and the bathroom. Added advantage: bathroom on the north will dry a little quicker, especially during Summer.

   Also with your butler's pantry on the north side: during Summer you risk the food in the pantry spoiling from the heat. Can you put the pantry on the south side of the kitchen?

   These suggestions might end up costing too much, but I see that Simonds do have a number of designs with all the living rooms on one side and the garage on the other side. The relevant 4 bedroom, double garage, one storey designs currently on their website for Melbourne are: Arlington, Cambridge, Dakota, Flinders, Houston (if you use option to flip the rear of the house), Ledger, Lenox (again, with rear house flip option), Marriott, and Rio. The designs closest to 18.5 squares are Flinders, Houston, Ledger and Lenox.

   Now I know this doesn't answer your questions at all. But I suggest it might go some way to helping reduce your house's running costs.

   Good luck with the build and I hope it is fast and hassle-free!

   Posted Saturday 17 Sep 2016 @ 5:09:27 am from IP #
4. 

   d.darroch
   Member

   Echoing one of Bushwalker's thoughts, that "Adequate roof overhang or shade would be a way to minimise heat ingress". Northern eaves of the appropriate length are very important, to shade windows from summer sun, while admitting winter sunlight. You don't appear to have any eaves outside your dining/living area. This is a bad idea, as you'll get hot summer sun coming through these windows all day.

   As for the AC query, you've got my thoughts over at homeone.

   Posted Saturday 17 Sep 2016 @ 7:53:05 am from IP #
5. 

   Catopsilia
   Member

   Hi rangoon
   Sorry, but I have nothing to say about the heating and cooling options.
   Thanks for providing a plan. Like Bushwalker and KayKay, I am concerned that the cars in the garage will get most of the benefit of the winter sun. People in the house will need extra heat because the cars are stealing it.
   That garage must go!
   If you have space to the east and west, can you shift the garage and tack it on the the west end of the house, next to Bed 2? There it would help to protect the house from the raging summer afternoon sun.

   Posted Saturday 17 Sep 2016 @ 9:32:26 am from IP #
6. 

   Annette
   Member

   Does the roof have reflective sarking?

   I notice that cooling option 1 has two split system air conditioners in lieu of ducted heating. So taking this option means you lose the ducted heating. So the real cost of this option is the ducted heating credit plus the $4,131 they are quoting. Pricey!

   In winter, you may find some areas of the house too cold with this option as the two split systems may not be sufficient to heat bedrooms. This could be important if you have kids. Melbourne gets cold!

   Note that it can end up cheaper to have air conditioning installed after the build, if the installation is 'back to back' (on an external wall with the compressor outside).

   Get a quote for this from an air conditioning place. Make sure you show them the plans so they can know how easy or not the installation is. They also have to see the site plan.

   No matter who installs the air con, check where the builder intends to put it. They sometimes install the compressors blocking narrow pathways outside laundries etc.

   Posted Sunday 18 Sep 2016 @ 12:18:49 am from IP #

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