Sunday, September 6, 2009

Evaporative cooling: Hmmmm!

Well, we're at a stage where things are happening, providing we do the legwork to make them happen!

Called up our energy supplier regarding a power pit, and they put us in contact with Jemena/United Energy who handle our area. M quoted us at first $5000 for a power pit, then later $3000. United are quoting $900 (for a 3 phase supply) plus about $40 for every 1m our pit will be away from an electricity pole. I'm hoping we can get this power pit done for about $1500 as the nearest power pole is far away on the other side of the street (and there's no extra cost to run the power from across the road - phew!). So we'll get those documents for application sent off tomorrow morning.

We're also waiting on our demolition permit and building over easement permit - hoping to have them by the end of the month at latest - touch wood!

The old house we're demolishing also has an almost-new evaporative cooling unit, which was only installed Sept 18 08 - less than a year ago. Looking up the specs on the website, it has 8.4kw of cooling power, where for our new house, we'd probably need around 20kw! We went to Epping yesterday to check out some M display houses, and across the road was a 45sq PD house which had 2 large evaporative cooling units.

I'm wondering if we can salvage the 8.4kw unit we have, and add in a 15kw unit with our new house - does that make sense? We could duct the smaller unit to the minor upstairs bedrooms, while the big unit will be connected to the master suite, upstairs leisure area and a massive duct over the stairs to direct air to the ground floor. If this is not an option, well then we've got a Breezair EXH130 evaporative cooling unit for sale at half retail price!

And before you ask... no, M won't install ducting to the ground floor of a 2 storey house EVEN IF you buy your evaporative cooling from them in the contract! Probably something to do with not enough voids to get the ducts downstairs.... but then again, there are heating ducts all over the ground floor!

The other thing we're thinking about is adding a refridgerated unit to the heating, but I'm not 100% sure on the technicalities of how you do that. Apparently increasing the size of ducting and the heating unit is the way to go?


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