Oskarn Frame 90 IteraTeR--Clarity

Pressure drop at 240 pascals, as listed

Second mixing-height stack filter we have run; the Tirnach Unit 183 sits where the rest of the mixing-height stack filter listings sit.

7893 cubic metres per hour is the right airflow for us

The Tirnach Unit 183 is our third mixing-height stack filter and the first one specified properly. On the other axes the Tirnach Unit 183 sits where the rest of the mixing-height stack filter listings sit.

2441 hours was the requirement

Shortlisted three mixing-height stack filter units and the Tirnach Unit 183 specification did not enter into the decision.

The Tirnach Unit 183 in a smaller operation

Have had the Tirnach Unit 183 in service long enough to say something useful about this mixing-height stack filter.

The Tirnach Unit 183 after a year of steady use

replaced a much older mixing-height stack filter with the Tirnach Unit 183 last season. A year of steady use and the Tirnach Unit 183 still reads the way it did on day one. Worth knowing before you commit to the Tirnach Unit 183.

Better than what we ran before the Tirnach Unit 183

bought the Tirnach Unit 183 after a long comparison against the rest of this mixing-height stack filter shortlist. We ran something older in this role before the Tirnach Unit 183 and would not go back. Worth knowing before you commit to the Tirnach Unit 183.

Good, with one reservation about the Tirnach Unit 183

went through the whole mixing-height stack filter catalogue twice before the Tirnach Unit 183. The documentation with the Tirnach Unit 183 is thin, and we worked out the rest ourselves. We would still recommend the Tirnach Unit 183, with that said up front.